Naughty Patty's

The food was ok. It wasn’t busy so the burgers didn’t taste fresh off the grill. They tasted like they had been sitting a while and the cheese didn’t appear to be new, but looked like they placed a piece over some old cheese. The ambiance is good because it’s on the second level of the Cosmo. We spent $67 on two burgers, two fries and two waters. Was it worth it? No not to me. I won’t come back because there are too many options. The “special sauce” is horrible. Do yourself a favor and ask for it on the side.

I had the burger and a grilled cheese. Both were small but had great taste. Fries were good but the container was about 70% full. Good but over priced. Additional photos located on my profile page and videos on my profile page ( VivaLasVegasX )

Loved it ! Burger was a solid size served hot with a delicious unique sauce & flavor ! Surprisingly quick serve time for how busy the venue was and the Fries were perfectly seasoned and somehow stayed hot even though ate them last ! Cool vibes and a great addition to the block 16 food hall !

I'll be honest, the food just lacked in flavor in terms of the burgers. The other thing is for a $16 burger, it had so much hard fat gristle that it really hurt my teeth while eating the burger. I don't find myself that critical of most food places in Cosmo but this one missed the mark......I wouldn't eat here again. Staff seem to have migrated from other quick eats on the block so they are excellent and you'll probably see some familiar faces.

Came in have a late night bite and it was absolutely amazing. I recommend getting their signature naughty patty.

I had the best cheeseburger of my life, shout out to Joey, will be coming back! Made my experience at the Cosmo so much better after Milk let me down by being out of stock of everything!

The burgers here are amazing! The patty is juicy, the bun is perfect, and the special seasoning is next level. Fries are crispy and delicious. Definitely coming back for more!

JUST SAVE YOUR MONEY AND GO ELSEWHERE. Aside from the skimpy patty size, my carry-out order was a complete failure. Only to reach my destination and find cheese when I ordered no cheese. After scraping the cheese off, I found that my $4 avacado add-on was only a sliver of a piece of avacado. Lastly, the large Fiji water was $11 but I guess shame on me for not inquiring on the price. Kerplunk!

Very nice addition to the District.. but larger than the others and that's well deserved. Burgers are great. Next time we will try the grilled cheese and shakes. Kudos to Cosmo for this addition

The newest addition to Block 16; we only tried this because Lardo has dropped their Pho'rench Dip sandwich (they said it may come back for Winter and if it does.. go get it now!). Wanting a small snack before our late dinner reservation, we decided to try this. As you would expect here, it's not cheap. The burger alone is $16, you can make it a combo with fries and a drink for $26 total, but if you want to upgrade the drink to beer or concrete (shake), add a few bucks more. So we got the NP Burger as it comes with dressed fries. Wait wasn't too terrible for a fresh smash burger. This didn't hit the spot. Burger was nothing special... it was fine, but this could've been shake shack or in n out at fractions of the price here. I read that some people didn't have hot fries; ours were hot, but even dressed they were tasteless. I had to add salt to them and I NEVER add salt to fries. I will say that the additional seating they added for NPs was nice so there's that, but my recommendation is that if you're eating at Block 16, you can do better, both in taste and value for the price, at Lardo, Tekka, Hattie B's or Bang Bar.

The food was ok. It wasn't busy so the burgers didn't taste fresh off the grill. They tasted like they had been sitting a while and the cheese didn't appear to be new, but looked like they placed a piece over some old cheese. The ambiance is good because it's on the second level of the Cosmo. We spent $67 on two burgers, two fries and two waters. Was it worth it? No not to me. I won't come back because there are too many options. The "special sauce" is horrible. Do yourself a favor and ask for it on the side.

Fun concept for a tasty burger, hot dog, grilled cheese, fries, and ice cream. Loved the chili cheese fries, chili is tasty and not spicy. I bet it would be jam packed at nighttime after 10pm. Burger was well done and a nice soft brioche bun. I got mine with no sauce. Easy to find in the block 16 food court area.

Nice addition to the cosmopolitan. I loooooved this burgers, wish I lived in Vegas. We got smash burgers and French fries and their famous "make it dirty fries" with not quite chili so tasty. I like their nachos concept, I like place, staff was friendly. Can't wait for next vacation.

Strong addition to Block 16 Food Court inside Cosmopolitan. Didn't even know this was here! Located across from Lardo as you're heading towards the Chealsea tower, this spot is at the corner complete with bright lights and added seating! The line to order and pick up food went super fast! Seasoned fries were crispy and fluffy inside while the seasoning wasn't overwhelming. The Burger, at first bite was amazing! Juicy, seasoned well with fresh toppings. $19 for the Combo meal is not bad... plus the cost of bacon! Enjoy!!

Not impressed. Burger was not all that good. Lacked flavor,sauce reminded me of a whopper. Price made it taste even worse. Fries were actually good. Save your money there are better burger spots on the strip.

Most people are going to complain about the cost but given its location, it is what it is. My issue is with the fries. The menu literally says CRISPY fries and we got a soggy mess. I was excited for crispy fries and what a let down. For this kind of money, at least make the food as advertised!

Pretty casual place. Easy to order and food came out fast. The burger was good. I like their in-house root beer and their reusable cups. We were hungry and needed a quick rest, and this hit the spot without all the fanfares.

Horrible hamburger extremely salty bland and bun awful. 4 times the price of in/out burger and worst quality imaginable

Naughty Patty's was a great place to stop by for lunch! The food was great and the fries were the best part!! They were fresh & hot and just the right amount of crispy!

Oh my goodness the best smash burger I've ever had. Ambiance was awesome had so much so much fun with all my friends. We all loved the food. Service was great!! Will go back and will tell my peeps to eat there.