Flats Burgers

Flats Burger has quickly become one of my go-to spots for a great meal! My favorite burger is the Sarap Manila with the Cajun fries. Make sure you get it with the egg. Flags Burger is located in Rocks Den. Order yourself a burger and get a drink from the bar. There’s also a pool table here and music. Bring your friends here and enjoy yourself a burger!!! Service is also amazing 5/5 stars!

Hands down, the Sarap Manila Burger at Flats Burgers is incredible! I couldn’t wait to dig in, so sorry about the big bite before the pic. If you’re craving something unique and flavorful, this burger is the one to try. Will definitely be back!

Went to their pop up location in fort mason. The burgers were DELICIOUS. Tried the Sarap Manila and Wasa-bish. The patties were moist and so flavorful. Cajun fries on the side were perfectly crispy. Can’t wait to go back to the restaurant to eat more!! Must go!!!

It’s been a real quest for me to find a great burger in San Francisco, and Flats delivers the perfect balance of flavor. The richness and simplicity of each burger make them wonderfully harmonious, yet every bite has its own unique touch. Not overly done, yet distinct. The only downside is that this burger joint is so close to my house it might keep me from exploring other spots. Plus, the vibe is nice and cozy. Wasting good times while having good times.

My best bud said they were the “best wings” she’s ever had. Crispy and juicy. The guys are passionate about their product, enthusiastic to serve, and thoughtful about their business. I’ll be back to the Rocks Den where this kitchen is located, mostly for the food.

Looking for a hefty SMASH BURGER!? Check out Flats Burgers currently located inside Rock's Den Bar. They offer Asian-inspired flavors such as Sarap Manila (Filipinx), K-Pop (Korean), and Wasa-Bish (Japanese). They also offer a classic American Smash Burger. I really wanted to try all 3 of the Asian-inspired Smash Burgers, so guess what? I got all 3 because why not!? Sarap Manila is made with Longanisa and Banana Ketchup. How could I not get that!? K-Pop included Kimichi and Wasa-Bish had a Wasabi Mayo sauce. Each bite 100% lived up to its name and each one carried a uniqueness that you cannot find anywhere else but at Flats Burgers. The buns were buttery and soft, the patty was, of course, flat or smashed, but you get 2 patties and its just cooked to perfection where each bite of whatever burger you order, your tastebuds will be dancing. My personal favorite was actually the Wasa-Bish, because the Wasabi Mayo sauce they blend together was soooooo yummy!! I needed more of it so I ordered extra sauce on the side to add a little more to the buger. They also offer fries, tots, loaded tots and wings. We also ordered their loaded tots with longanisa and oooo that is a meal on its own! A generous amount of longanisa and sauce coating almost every tot. They are located inside a bar so expect people sitting at the bar or playing pool in the back table. It's honestly a chill place if want good food, some brew, maybe watch some game on one of their TVs, play pool or just hang out. Parking can be tough. Street parking so just be mindful and don't forget to pay!

Delicious!! Everything was so good, but my favorite was the Manila burger and lemon pepper fries!

Great burgers! + nice lounge for hanging out and playing pool

I only ordered the Manila Burger with an egg. It is more on the sweet side as they use Filipino sausage, however, It is the best burger I have ever had as I could not stop taking a bite. I plan to come back to try out more of their menu!

If you're in SF, you need to check out Flats Burger inside Rocks Den (open Mon-Tues, 5-9 PM). They specialize in Asian fusion smash burgers, and they don't disappoint. The K-Pop Burger was my favorite--juicy patties with kimchi, creamy kimchi mayo, and kalbi sauce for the perfect smoky, sweet, and spicy combo. The Filipino-Inspired Burger with chicken and beef longganisa patties was packed with rich flavor, and the optional fried egg made it extra indulgent. The Wasa-bush Burger had a great wasabi mayo kick, though I think a pickled cucumber would've balanced it even more. Their sauces--like K-Pop (kimchi mayo), Wasabish (wasabi mayo), and Sarap Manila (banana ketchup mayo)--are all house-made and amazing. Pair your burger with fries, Cajun fries, or tater tots for a perfect meal. The staff is super friendly, and you can taste the care they put into everything. Flats Burger is a hidden gem--definitely worth the trip!

Fantastic new Asian inspired burger spot in San Francisco. They're located out of rocks den in the excelsior on Mondays and Tuesdays. Their burgers are unique for sure, but if you're willing to try something new and different I would definitely recommend. The service was on point, a couple of good kids running it. Prices were decent and the overall vibe of the bar was chill. Nothing crazy, good place to get a beer or cocktail and a burger, maybe catch a game. Hit em up!

After trying 3 out of the 4, (Wasabi, K-Pop, Manila) I'd rank em in order, 1. Wasabi 2. K-Pop 3. Manila 1. The wasabi burger has a nice unique sauce that gives a slight kick of a wasabi burn through your nostrils, but nothing too overpowering. 10/10 2. The K-pop burger also has an interesting taste, kind of similar to spicy mayo, with a kick of kimchi. 9.5/10 3. The Manila burger is a very interesting and unique concept. I wasn't the biggest fan, but I'd say some who prefer sweet over savory would definitely enjoy this burger. I'd recommend adding an egg! 8.5/10 Overall, the food is dope and some of the best smash burgers in SF

I'm sorry but no. The Wasa-bish burger was mid and the patty was bland and not seasoned. The tots tasted burned idk if they were overcooked or deep fried in old oil but it had a burnt after taste. Not sure if I came on an off day but for a $12 burger this was very disappointing.

10/10 food and service! We got the manila and kpop burger and they were both so good!!! If you love kimchi get the k pop one i recommend i fell in luvvvthank you especially to the girl who took our order down and gave us a coupon for next purchase she was so sweet

Flat Burger is located in a bar in the mission district. I had forgotten the burger names, but my girlfriend and I had gotten a philipino, korean and japanese inspired smash burger. The food overall was good and two of my favorites were the philipino and korean burger. The philipino burger had longsnjsa and egg. The korean burger has hints of kimchi which helped cut the fattyness of the burger. Usually when I eat smash burgers I get so satiated and overwhelmed by the grease. These burgers however with the addition of their vegtables helped balance it out. I would come back again if I were in the area. 5/5

Great environment, even better food! Hands down one the best burgers i've ever had. A MUST try

The Sarap Manila was AMAZING full of flavor and a taste of home would definitely recommend it

Flats Burger has quickly become one of my go-to spots for a great meal! My favorite burger is the Sarap Manila with the Cajun fries. Make sure you get it with the egg. Flags Burger is located in Rocks Den. Order yourself a burger and get a drink from the bar. There's also a pool table here and music. Bring your friends here and enjoy yourself a burger!!! Service is also amazing 5/5 stars!

Sarap Manila Burger is a must! Fast service with very hospitable people! Ambiance is great! Makes you feel like home!

10/10 would get again! This is my third time coming; I've tried the 10 Hunnid, Sarap Manila, and my personal favorite, the K-Pop...each and every burger they have is amazing! Service is fast, no more than 5-10 mins from order to food in your hands. Definitely stop by and give it a try when you have the chance

Quite literally the best burgers in the city! Highly recommend trying the Sarap Manila Burger! Also wonderful service from the owners :)

Came across this spot a while ago and got the Kimchi burger, and I was hooked on it since. Recently they added the Sarap Manila, which is burger made with longanisa. Never knew how good that could be, but definitely my new favorite there. Spot is pretty chill with comfy seating, pool tables, and alcohol, as this place is located inside the Rock's Den bar. Staff are very friendly as well. Highly recommend giving them a try if you're around the area or visiting the city.

Amazing asian inspired burgers and fries with an even better group of owners! Definitely recommend coming out and giving them a try.