Unos Mariscos O Que
Restaurant · Round Rock ·

Unos Mariscos O Que

Restaurant · Round Rock ·

Fresh Mexican seafood, ceviche, aguachiles, and micheladas

aguachile
ceviche
shrimp cocktail
michelada
fresh seafood
friendly service
good food
tostadas
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null
Unos Mariscos O Que by null

Information

1350 E Palm Valley Blvd, Round Rock, TX 78664 Get directions

$20–30

Order delivery
See Menu
Restroom
Popular for lunch
Popular for dinner
Cozy
Trendy

Information

Static Map

1350 E Palm Valley Blvd, Round Rock, TX 78664 Get directions

+1 512 284 8029
unosmariscosoquerr.com
@unosmariscosoque

$20–30 · Menu

Features

•Restroom
•Popular for lunch
•Popular for dinner
•Cozy
•Trendy
•Family friendly
•Good for groups
•Good for solo dining

Last updated

Jan 18, 2026

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Chef Adán Fausto Will Revive His Seafood Pop-Up at the Houston Blacklight | Eater Portland

"Fusing his earlier pop-ups Paradise Mariscos and Tacos con Onda, Fausto plans to bring back a retooled concept called Mariscos con Onda that is anticipated to take over the Pisha-Dufflys’ psychedelic bar Houston Blacklight beginning in early June. There he will serve ceviche, seafood cocktails, shrimp flautas, and fried oyster tortas, and he’s working with Houston Blacklight bartender Em Warden to revamp the cocktail menu so it pairs with the mariscos offerings—cocktails might be garnished with whole oysters or grilled shrimp, and a mangonada-inspired slushie finished with chamoy is planned." - Janey Wong

https://pdx.eater.com/2024/5/17/24159129/adan-fausto-seafood-pop-up-houston-blacklight
Unos Mariscos O Que

Fernando P.

Google
I found this place in Round Rock using google maps, I almost hesitated to check it out, but I’m glad I didn’t. The place is off of 79, I’m not sure if they have parking in the back, but they do share parking with other small shops. The place is clean, and they have plenty of seating available. The service is friendly and efficient. The food is very good, at least what I tried this time, which is a shrimp and octopus cocktail. They have a wide variety of different hot sauces to choose from. They also have a stage where they appear to have karaoke, and they also play Mexican music, this is based on the instruments on the stage. Check it out, you won’t be disappointed.

Ryan A.

Google
Overall, we had a pretty good meal here, minus some service issues. The seafood is definitely the star, good and fresh. Both the seafood tower and the grilled shrimp (cucharachas) were very good. The michelada was also quite nice. The service issues were probably language challenges as our waitress did not speak English, and our Spanish is limited, but they goofed up the kids orders, and had to remake them, which always creates the challenge of us trying to eat while the kids have nothing. That said, although wouldn’t rush back, could try again since the food was good.

Jose H.

Google
My first experience: From the outside, Unos Mariscos o Que might seem like just another unassuming spot—but don’t be fooled. This is a hidden gem in Round Rock that seafood lovers must experience. The moment you step inside, you’re welcomed by an open, clean, and well-put-together space that feels both inviting and thoughtfully designed. The atmosphere strikes a perfect casual and inviting balance making it an ideal place for a relaxed meal with family or friends. Now, let’s talk about the food—incredible doesn’t even begin to describe it. The seafood is flavorful, and prepared well. Whether you're craving ceviche, tacos, or a perfectly grilled fish fillet, every dish is crafted with authentic flavors and quality ingredients (again, my first experience). The seasoning is spot on, and the portions are generous without being overwhelming. Service is another highlight. The staff is attentive, friendly, and quick to offer recommendations, ensuring you find the perfect dish to suit your taste. If you’re a seafood lover, Unos Mariscos o Que is an absolute must-visit. Great food, welcoming atmosphere, and good service—it’s the kind of place you’ll find yourself coming back to again and again.

Ale

Google
Great food. I ordered octopus well, cooked soft and juicy, generous portions, Service needs more experience. There was a 10 people table, and everything looked like slowed. The bar we order beer it came late and the menu prices are diferent than what you're charged no big deal Seafood fluctuate in price but a photocopy off your new prices helps until you get new menus. The atmosphere is ok, but tvs with a frozen channel is no to appealing Remembered sports attract customers no Mtv Well, the important part is the food is goog

yamil H.

Google
I try this place after a day out in the river... order the shrimp and octopus cocktail.. never again save your money. It was all water with a heavy taste of soy sauce. And onion.. and like 4 or 5 shrimp. And no Octopus.... what a weird flavor... nothing I ever tasted and nothing I would like to ever taste again. Hope I can save someone the bad experience of this place..

Reviewer

Google
Went to eat here because I was craving Hispanic shrimp 🍤 cocktail. This place had the highest rating compared to other places so we came here. I ordered the shrimp cocktail and we also ordered the shrimp with rice plate. They both really good, I liked how they had a variety of sauces to choose from. They had music playing in the background, good atmosphere. The only thing we waiting a while for the food to come out. Other than that it was good

Johana A.

Google
I went this weekend and I must admit that the aguachile is the best I have ever had, but my husband ordered garlic shrimp and they were overcooked, dry and with a lot of garlic without even being mixed with any butter. It is a call for them to improve their garlic shrimp recipe. The rest was super good.

Dave I.

Google
A small little strip mall restaurant with about 12 tables and 7 bar seats. Very bright and clean inside with music at a conformable level. There are 3 TVs but they weren't on at the time of our visit. The food is very good and uses quality ingredients. However this is reflected in the prices. They seem inflated at first glance. You get the feeling they are just starting out, but it seems they are trying pretty hard to get it right. Friendly service as well. We will be back.
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Susana P.

Yelp
Ordered pick up. The caldo de camarón was really good a little but spicy but that's what made it good! The ceviche I got is not my favorite, the special sauce is different from what I was expecting but was loaded! A lot of stuff there, worth the price, definitely coming back to try something different. They got live music when I pick up my order.
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Jorge M.

Yelp
Finally an excellent place for Mexican seafood. Very good service,atmosphere and seafood. Finalmente un excelente lugar de mariscos en ATX. Muy buen servicio,ambiente y comida.
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Erick C.

Yelp
We were hoping to like this spot but unfortunately the aguachiles we ordered that they tasted like the lemon peel very bitter. Small things like using the right lemon or cleaning out the tools can make a difference. They have potential but I'll probably give it another try some other day.

Sonia M.

Yelp
This place is amazing, the food is so fresh and delicious, I definitely will come back again every time I can. The service was very quick and the ambiance was nice.
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Maribel R.

Yelp
Love love love this mariscos spot. We love coming here. I always order the appetizer jalapeño poppers and the shrimp cocktail is also super yummy! Service is on point . Odalys is a wonderful server!!! So sweet and attentive. Ambiance is very Latino friendly and the music is great. Not only is the food amazing but the music is great.

Luz M.

Yelp
I sat outside, in the back, because the live music was loud for me but the food was outstanding. The Chicharrón de Pulpo is out of this world. Once I drove 4 hours just to go eat there! Great food.
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Courtney B.

Yelp
Vine a este lugar la semana pasada con otra persona para cenar. Pedimos varios artículos en el menú para poder probar un poco de todo. Dale! Guacamole El guacamole fresco que se sirve aquí proporciona un toque de especias derivadas de la pimienta y el jalapeño. El guacamole combinado con las frescas tostadas mantecosas es un entrante agradable. Camarón Diablo Camarones a la Diabla o camarones a la diabla mexicanos o "camarones del diablo", es una de mis comidas mexicanas favoritas de todos los tiempos. Los camarones tiernos y regordetes se chamuscan en una sartén y luego se vierten en una salsa rica y picante hecha con chiles secos. Los camarones a la diabla que se sirven en este lugar están hechos con pimientos verdes y rojos y se sirven con una guarnición de arroz. La salsa para los camarones en este elemento del menú era rica, rojiza, terrosa y un poco rústica. El perfil de sabor de este plato proporciona un picor moderado y tonos aromáticos de la base de tomate. Tacos de pescado Los tacos de pescado tienen algo que evoca imágenes de los días de verano en los pequeños pueblos costeros de Baja California. Donde el aire está perfumado con la combinación del mar y la masa humeante, y los sonidos de las chisporroteantes tapas planas y las canastas de papas fritas de los camiones de los vendedores ambulantes se entremezclan con la música latina y la charla en el paseo marítimo. Eso es suficiente soñar despierto. Los tacos de pescado son humildes en su composición básica: pescado cocido envuelto en una tortilla de maíz. El pico de gallo encima de los tacos brindó una fresca sorpresa al paladar sobre la pesada base rebozada. Este restaurante es auténtico y vale la pena volver a visitarlo. Apoyo local!!!!!!!

Elsa A.

Yelp
I highly recommend visiting this place if you love seafood and live music. The food was delicious and the ambience was unmatched!!! We'll definitely be returning customers!!
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Topi H.

Yelp
I'm torn. I've been wanting to try this place for so long but it's hard with 2 little kids that don't like seafood so today I decided it was the day to make it happen. I put my kids to bed and put in an Uber eats order just for myself! Because it was a special occasion I went big and ordered a caldo levanta muertos and a coktel... I couldn't wait!!!! It arrived and the first thing I opened was the coktel, things were looking good. They added tostadas and saladitas. I'm more of a tostada person so I wish it came with more tostadas versus crackers (maybe add the option for either or both when ordering online?) but it was totally ok. I paid $23 for this and I thought it was a decent amount of seafood, the salsa was tasty, and I enjoyed the spice level. Next, the reason for the 3 stars... this $15 Caldo Levanta Muertos. It was all broth, FULL of pepper (see pics attached), the broth was heavily seasoned with either salsa inglesa or maggi, I can't tell which at the moment. I tasted the sauce from my coktel and tasted the broth and it was almost identical except one was cold and the other warm, the amount of seafood was extremely disappointing , and I can't believe I paid $15 for this. I'm glad I ordered 2 dishes otherwise I would've been upset with receiving just this soup. When you order this caldo it's supposed to be full of seafood variety. If you think I'm exaggerating please google "Caldo de Mariscos Levanta Muertos". Because of their seafood mix I will try them again but if it had been based off their caldo I wouldn't spend another dime there. Order their cold seafood dishes and save the caldos for another place. I spent $58 ($1 fee for quick delivery and $14 tip for my Uber driver included) for this soup and the seafood mix.

Adriana C.

Yelp
We visit from California, Food was so delicious, service was great and ambiance was perfectly we listen to Banda while enjoying our food and drinks. When we come back to Texas we would definitely be coming back!
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Nacha P.

Yelp
Not gonna lie, this place is Good!!! Having heard about this for a while but because the location is a little odd I never thought to stop by and eat here. Well today is my lucky day and I'm glad I got to experience my bud taste here. We sat down and start with drinks, we got one Michelada and to our surprise it came in a BIG glass. After looking at the price it listed $10. Then we looked at the menu and surprised with how high the price was, we were not sure how big to portion is so we only start with 2 tacos. We started off with Octopus taco and steak taco. To my surprise, I felt in love at the first bite to both dishes and that lead us to order fish taco and Gobernador taco too. All I can say is, their ingredients are super fresh and they cook it to perfection. Their flour tortilla is homemade and it was super good. Seriously, give it a try. You gonna love it. I will be back for sure
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Mike K.

Yelp
Great service , the food is delicious , the atmosphere is amazing , definitely will be back

Katy S.

Yelp
Marcela was a wonderful server! Delicious food and great service! Would highly recommend for fresh seafood!
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Yanahi J.

Yelp
Recommend this place 100%, if your looking for authentic Mexican sea food this is the place. Fresh sea food full of flavor and very large portions. Great customer service and very clean location.
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Vero V.

Yelp
I must say that if you craving mariscos Mexican style you will be disappointed! The flavors are not there the presentation of the food was non existent and there is not ambiance at all! The prices are a bit high for what you getting (I mean portions size). I mean I always expect to be $$ for seafood but you normally get what you pay for but not in this place the food really lacks of flavor and it didn't taste fresh. The drinks were horrible as well! The service wasn't great but considering there was only one server it wasn't completely terrible but we had to wait for refills and stuff. The restaurant is very very small. Not that it's a bad thing but I was expecting a little more since the pictures are deceiving I will definitely won't be going back
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Moni C.

Yelp
Love this place . Best seafood and the salsa they have is amazing . Our hostess was amazing. She took care of all of us even when there were many tables and she was alone. Will make this place a regular
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Jess R.

Yelp
Is this really a Mexican restaurant!?!? No chips and salsa!! No homemade tortillas!! Wow! Super disappointed and will not come back to this "Mexican" restaurant. There's a much better one down the street. On a side note- the fried pickles are really good!
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Vanessa V.

Yelp
Food was amazing. ALL I CAN SAY MY FAMILY AND I LOVED IT food was so tasty and the michelada was boom from a family tip from Dallas I do recommend it was lonely when we showed up kinda iffy but wow will come again when we travel here again.
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Ruby R.

Yelp
This place was totally on point for Mexican seafood. We tried for different meals and all were delicious. The service was wonderful. Great Mariscos Baja style. The agua chilaquiles Verdes were delicious, their bacon wrapped shrimp, caldo de pescado (fish soup), fish tacos, & beef fajita tacos...heck even their rice was delicious! Service was great. Like others said, it may not look like much when you walk in, and the name is different but overall this place is a gold mine! We will be back!
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Crystal O.

Yelp
I love this place so much! I usually be iffy about random seafood places but so far the best I've found here . I get the Aguachile Negro. Omg it's so mouth watering good. I've also had the Rojo which is good but I love the Negro. It's as recommended to me but one of the workers. That's not her thing. They're always so sweet. And so patient. They never rush your ordering and always greet with a. Smile. Love them.
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Lauren M.

Yelp
Fresh, clean, and so delicious!! Pretty sure they make their tostadas and they're BOMB!!

Israel F.

Yelp
Third time here. same scenario with the waitress. They tell you to sit down anywhere, then they just stare at you not bringing menus or anything. worst service i encounter. The food is good, that why i keep coming back. i know this is the last time im coming here.
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Tony L.

Yelp
Great family owned restaurant! If you're looking for good Mexican style Seafood Restaurant this is the place for you. #EATLOCAL Buenos Mariscos Mexicanos nos aventamos unos Mariscos O Que!
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Bella V.

Yelp
The shrimp cocktails are the best in town, and the service is always on point. The place is small but it feels super homey
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Frances W.

Yelp
We were headed to Cracker Barrel but decided on a Family owned instead a franchise. This is our new favorite place for seafood. It delicious and worth the money. Come and try it!

Happy S.

Yelp
Great ceviche. Really delicious. Fresh and really good tostadas. We would love it if they had gift certificates.

Florisa V.

Yelp
Food was mediocre. Agua frescas were watered down. They don't serve chips and salsa. Or with the food at all. We had to rely on bottled hot sauce and salt to make the food taste ok. It's not all about presentation and they shouldn't rely on that because taste is more important. The service didn't make it any better. After we were brought our drinks it took very long for our order to get taken and then they never came back to check on us ever. Ambiance was ok. Music was good and not to loud. But, we did have to wait for our table to be wiped down.
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Erick D.

Yelp
Great food and service we tried one of everything and the flavors are amazing if you're in round rock Tx come here
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Melissa M.

Yelp
I ordered to go and it was packaged nicely. The food was so good and I am so happy I don't have to drive far to get good Mexican seafood!

Juan T.

Yelp
10/10 would try again the food and service was great and the steak tacos and wait time for food was not long even we had lots of people

Jose D.

Yelp
Love the unique menu. Food items hard to find in the Austin area. Their ceviche variety is great!

blanca e.

Yelp
Ordered the tropical ceviche, full of flavor. Service was quick and the waiter brought our food. Ambiance was overall good. Would come back for sure

Felix M.

Yelp
Best michelada I have had. Los ostiones y camarones cucaracha deliciosos. Aguachile Mango HabaneroOysters

The Actual Business CritiX X.

Yelp
The business name listed on Yelp as Unos Mariscos O Que, located at 1350 E. Palm Valley Boulevard, Round Rock, TX 78664, USA. Date of visit: Saturday, 1st October 2022. 1) Ambience: The business was neither welcoming nor standoffish. Rating: 0.5 star. 2) Sanitary: The business maintained a filthy environment. Rating: 0 star. 3) Services: The employees demonstrated professionalism. Rating: 1.0 star. 4) Products: Aguachile, Mango Habanero; Aguachile, Negro Spicy; Fresh Oysters, 6; Steak Taco, 1; Jalapeño Poppers, 8; Horchata; and Diet Coke. The quality of products was excellent. Rating: 1.0 star. 5) Price v. Cost: Aguachile, Mango Habanero ($18.72 x1); Aguachile, Negro Spicy ($18.72 x1); Fresh Oysters, 6 ($12.48 x1); Steak Taco, 1 ($4.16 x1); Jalapeño Poppers, 8 ($6.24 x1); Horchata ($3.12 x1); and Diet Coke ($2.60 x1). Total with Tax: $71.49. The prices set by the business were fair. The products and services should really cost as is. Rating: 0.5 star.

Danny A.

Yelp
If you really want Mexican/ Sinaloa style mariscos, this is the place to go. We don't have to go to Dallas or San Antonio anymore. We ordered a few plates of different dishes and were very impressed with the food. Really cool guy that took care os us. For sure we will be coming back because we will not miss the seafood from Cali anymore.

Mark C.

Yelp
I would not pay attention to the negative reviews because obviously those customers do not understand what they are eating. I have spent a lot of time eating seafood in Mexico and this is the ONLY restaurant in the Austin area I have found that knows what they are doing. The ceviche tostadas are fresh and generous and very very reasonable price. The seafood tower is fantastic loaded with a variety of fresh and raw prawns/scallops/fish/octopus and while it is $23 is it enough for 4 people as an appetizer. The sauce it is in is excellent and real Mexican style. The bacon wrapped cheese filled prawns are as good as I have had in Mexico. They also make a range of seafood tacos that remind me of the style in Tijuana that are sooooo good. Their gobernador with shrimp and sausage is a must try. I moved recently from the SF Bay area that has no Tex-Mex and only authentic west coast style cuisine/seafood.....this place is the closest I have found to that authenticity in Austin. I'll eat there once a week from now on. It is true their prawn dishes are more expensive than most local places, but you get what you pay for,
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Hjorrue L.

Yelp
This was one of the best places I've gone to around town. We had guacamole, ceviche, shrimp cocktail,shrimp tacos and shrimp zucchini plate. We were impressed with all of it!!!

Athenna H.

Yelp
Food was really good as well as the service. Our waitress was really nice. I don't eat seafood, so I went with the steak fajitas. They were super good and was a very large serving

Jason C.

Yelp
I just moved to Texas and I already found my new Mariscos spot. I got the coconut shrimp and mojarra frita which were both really good. I was surprised that even the tortilla chips that they serve before the food were really quality as well. The servers were friendly and quick to bring what we asked for. The interior is very clean and they're always playing good music. I recommend this place

Adrian G.

Yelp
I came here and I ate and I got wings and the wings were fucking raw that shit was disgusting and I had diarrhea for 2 weeks and I was nauseous for 3 weeks and my shit was red and I was bleeding out my ass hole
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Genesis A.

Yelp
Great food and service. We ordered the chipotle and crème fish and the calabazeado shrimp, both were delicious. Will be back to try more

Mariana T.

Yelp
Don't come here! I rate this a 0/10 the food and service was horrible I walked in and the place was EMPTY I proceeded to sit and give it a try since it was a new place for me. The prices are obnoxious. The portions are so small. I paid $20 for a plate with 6 shrimp and a side of rice. When the server took my drink order she went to the bar to make herself a drink and then brought me my lemonade 10 minutes later. When my food came out she never once came by to my table to see if everything was okay or if I needed anything, she sat down at a table to be on her phone I had to call her over to pay. I paid $65 for 2 drinks and 2 meals which were horrible. never again. HORRIBLE.

Mary S.

Yelp
We went for the first time and I love it. I love spicy sea food and very good customer service

Danna V.

Yelp
Food was not too bad but waitresses need to work on their attitude do not have good customer service!

Fred Z.

Yelp
Excelente costumer service and good food aguachile is delicious the piña colada is perfect for my and the shrimp soup mmm is better the bucaneros
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Angelica O.

Yelp
You wouldn't think much of this place from the outside. Once inside, the place is spotless, the food is great and the waitress was friendly. The chips are to die for. Ceviche is awesome.

Alex A.

Yelp
It just recently popped up on my list of restaurants near me. I am always looking for good seafood, specially Mexican style seafood. I chose this place because it was new to me but most importantly because it delivered. I ordered, ceviche tostadas, aguachile and shrimp cocktail. I was impressed with the portion sizes and also, the very mindful way of packing to go orders. The pack the c coche in a separate container from the tostada, so it won't get soggy on the way. That is very much appreciated! Taste was fresh and delicious!

Jorge Z.

Yelp
I've been looking for a place like this for a long time. Not the usual breaded stuff you find everywhere. Good service. Delicious food.
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Saul S.

Yelp
Aguachiles on pint, and the mixed seafood was fresh, michelada was good not great Paloma drink was ok! I'll be back to try the whole menu