Seafood restaurant · Upper East Side
Casual seafood dining with Prince Edward Island mussels
Seafood and Oysters on the Upper East Side
Seafood and Oysters on the Upper East Side
Prince Edward Island mussels in multiple preparations
Fresh oysters and fish dishes with various sauces
Gluten-free and celiac-safe menu items
Outdoor cafe and second-floor party room
Flex Mussels is a seafood restaurant and oyster bar located at 1431 3rd Ave in the Upper East Side of New York. The venue offers a casual setting featuring Prince Edward Island mussels prepared in various ways, along with oysters, fish dishes, and desserts. The space includes a bar area, a second-floor party room, and an outdoor cafe. The business also provides gluten-free and celiac-safe options.
Large mussels served in a well-seasoned broth, often paired with sourdough bread for dipping.
A specific preparation of mussels served with truffle fries.
Mussels prepared with Thai flavors, served alongside truffle fries.
Mussels cooked in a coconut curry broth.
Fresh oysters available as part of the raw bar and happy hour.
A popular appetizer available on the menu.
“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!”
“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.”
“Parma mussels and Thai mussels with truffle fries were amazing. The oysters were fresh and tasty and it made it even better that they were included in happy hour as well!”
Flex Mussels · Upper East Side
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