Flex Mussels
New York
At a glance
Flex Mussels, located at 1431 3rd Avenue in New York, offers an inviting blend of marine-inspired cuisine and relaxed dining. Anchored in the Upper East Side, this venue specializes in mussels and seafood, adding a variety of communal offerings to the table ideal for sharing among friends and family. The menu is designed to accommodate various tastes with a focus on fresh, quality ingredients, ensuring something for everyone at meal time.
The restaurant's interior is styled with a modern touch, creating a warm atmosphere suitable for casual meals or special gatherings. Large communal tables suggest an informal yet social dining experience. The venue also features a bar area where guests can enjoy an array of drinks, including both classic and inventive cocktails, or a glass of wine to complement their meal.
Flex Mussels is a suitable spot for those who enjoy seafood and would like to indulge in a variety of mussel and oyster platters, along with other fresh catches. With options that cater to different dining occasions, from brunch to dinner, and offering happy hour specials, it adapts well to both quick bites and leisurely meals. The atmosphere supports a dynamic experience where guests can pop in for a casual drink at the bar or settle in for a full dining experience.
Reviews
This seafood restaurant serves delicious mussels, oysters, and fish dishes, with a variety of sauces and preparations. They highlight the fresh, flavorful seafood, and the fun, relaxed vibe, especially during happy hour. They also like the friendly and attentive service. Diners like this seafood restaurant's fresh and flavorful mussels, oysters, and fish dishes, with a variety of sauces and preparations. They also highlight the fun, relaxed vibe, especially during happy hour, and the friendly, attentive service.
An UES staple for me! They’re very catering to gluten free (& celiac safe). Truly haven’t had a bad item here: crab artichoke dip, kale salad, all the mussel pots, fries, oysters, martinis YUM
We have been here twice during our stay in the Upper East Side. Both times the food and service have been great. All the seafood was great, but I would sell my left kidney for the mussels alla vodka! Definitely ask for extra sourdough bread. And for a little more fun, sit at the bar. It’s semi-private (due to the support column in the middle) and fun to watch good bartenders at work. Highly recommend this place.
Came here for the steak frites experience, but didn’t see it on the menu. Had a pot of Dijon mussels instead. I also ordered a Mac and cheese with lobster, and flex fries. The mussels base broth had a nice flavor. They put a generous amount of Dijon mustard in it. It was very mustardy. However, the mussels were a bit disappointing because they were so tiny and skinny. I thought winter was supposed to be mussel’s season, but they seemed to be starving. The Mac and cheese was nice. It was cheesy and creamy. I like the macaroni they use. The swirly structure makes it easier for the cheese to cling onto it. The lobster was a bit unnecessary. Should’ve order without it and save $10. The flex fries were nice, but really nothing special about it. With the price of the mussels, the fries should have been included. I only ordered it out of curiosity. It carries the name of the restaurant and charges $9, but it was just ordinary fries. The bread was perfect to soak up the sauce. The server was nice enough to bring me another basket of bread, so that I wouldn’t be leaving still feeling hungry. It worked! Overall, it’s a nice restaurant. Mussels were fresh. The cooking was good. Food was nice. It was very crowded and load in there. I almost asked to change seat to the outside in this 27 degrees weather. The chair wasn’t very comfortable, especially the booth chairs. I could feel every single movement of the person sitting against me. The restroom was pretty clean.
On a cold winter day this meal hits the spot. The fact that they have happy hour even makes it more amazing . The mussels are large in size and served in a wonderful broth nicely seasoned. It’s perfect for dipping the bread into. The service is great and I always check on you. You easily could walk in and get a seat at the bar, but play it safe and make a reservation if you are a large party.
