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Flex Mussels - UES, New York, NY

Flex Mussels - UES

4.7
4.7
2816 Reviews
$30 and under
Seafood

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2 people
SunMonTueWedThuFriSat
7:00 PM
Booked 72 times today
  • Neighborhood gem
  • Lively
  • Charming
Direct importers of mussels from Prince Edward Island and oysters that taste like you're kissing the sea.

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Dining areas

Additional information

  • Dining style
    Casual Dining
  • Price
    $30 and under
  • Cuisines
    Seafood, American, Canadian
  • Hours of operation
    Brunch Fri–Sun 11:00 am–4:00 pm Happy Hour Wed, Thu 4:00 pm–5:00 pm Dinner Daily 5:00 pm–10:00 pm
  • Phone number
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Dress code
    Casual Dress
  • Neighborhood
    Upper East Side
  • Cross street
    South East corner of 81st Street and Third Ave
  • Parking details
    Street Parking
  • Public transit
    4, 5 & 6 trains to 86th Street, and M79 and M86 buses to 3rd Avenue.
  • Additional
    Bar Dining, Bar/Lounge, Beer, BYO Wine, Corkage Fee, Counter Seating, Full Bar, Non-Smoking, Patio/Outdoor Dining, Wine

What 2,816 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.7
4.7 based on recent ratings
  • 4.7Food
  • 4.7Service
  • 4.5Ambience
  • 4.3Value

NoiseModerate

Review summary

AI-generated from verified diner reviews
Flex Mussels on the Upper East Side is a haven for mussel lovers, offering "the best mussels in NY" with diverse preparations and delicious flavors. The ambiance is vibrant, though it can be "very noisy." Service is consistently praised as "excellent," complemented by creative cocktails and a lively atmosphere.
2,816 Reviews
  1. Micheal VIP

    New York City13 reviews

    4.0

    Dined 2 days ago

    1. Overall 4
    2. Food 5
    3. Service 5
    4. Ambience 3
    food and service were excellent, I only wish the restaurant was quieter as I could barely hear the people at my own table.

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  2. Lisa

    New York City5 reviews

    5.0

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Flex Mussels is a great restaurant with decor that reminds one of eating in a Parisian cafe, especially in the warm weather when outside dining prevails. The food is delicious and the portions are generous and I especially enjoy the Thai MusselsThe atmosphere is warm and casual and the wait staff are attentive and friendly. You will not be disappointed.

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  3. OpenTable Diner

    Atlanta1 review

    4.0

    Dined on March 22, 2025

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 1
    Food was good, service was fine, but restaurant is VERY loud and noisy. Difficult to have a conversation

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  4. Lynette

    Chicago4 reviews

    5.0

    Dined on March 21, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Really great experience all around at Flex Mussels. The food was DELICIOUS - I had the Parma mussels, which were outstanding. Our server, Jason, was personable and efficient.

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  5. Grace VIP

    New York City7 reviews

    5.0

    Dined on March 21, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    I love flex mussels. Always consistent, always delicious. The drinks are innovative and the mussels put all other mussels to shame. And for some reason I can’t stop ordering the deviled eggs!

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  6. Anthony

    Unspecified1 review

    4.0

    Dined on March 16, 2025

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 5
    Delicious mussels and great ambiance. Definitely somewhere I would recommend going to.

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  7. stacey VIP

    New York City1 review

    5.0

    Dined on March 16, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Our waiter Sam was so sweet and so patient and so very accommodating. Food as always was solid, donuts simply delicious. Love the outdoor seating area. Cheerful and happy and bright.

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  8. Jacqueline

    West Palm Beach2 reviews

    5.0

    Dined on March 16, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    So good. Can’t wait to come back and visit again soon!

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  9. Peter VIP

    New York City9 reviews

    5.0

    Dined on March 12, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    The food and the service at Guiseppe’s are excellent!!!

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  10. Kelly

    Tampa3 reviews

    2.0

    Dined on March 10, 2025

    1. Overall 2
    2. Food 1
    3. Service 4
    4. Ambience 3
    Honestly was underwhelmed with the food based on the pop up and prices

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FAQs

Flex Mussels - UES is rated 4.7 stars by 2816 OpenTable diners.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation


Booked 72 times today
Google Map for Flex Mussels - UES

1431 3rd Ave, New York, NY 10028

Dining areas

Additional information

  • Cross street
    South East corner of 81st Street and Third Ave
  • Neighborhood
    Upper East Side
  • Hours of operation
    Brunch Fri–Sun 11:00 am–4:00 pm Happy Hour Wed, Thu 4:00 pm–5:00 pm Dinner Daily 5:00 pm–10:00 pm
  • Price
    $30 and under
  • Cuisines
    Seafood, American, Canadian
  • Dining style
    Casual Dining
  • Dress code
    Casual Dress
  • Parking details
    Street Parking
  • Public transit
    4, 5 & 6 trains to 86th Street, and M79 and M86 buses to 3rd Avenue.
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Additional
    Bar Dining, Bar/Lounge, Beer, BYO Wine, Corkage Fee, Counter Seating, Full Bar, Non-Smoking, Patio/Outdoor Dining, Wine
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