Cosme

What groups say

Groups of 6 to 12 book the back private room or large tables for birthdays, client and colleague dinners, sharing family style.

• The private room sits at the back of the restaurant and reviewers used it for a birthday dinner of 12.
• Menu is a la carte and shared family style; servers advise how many dishes a group needs.
• Reviewers report parties of 6, 7, 8 and 12, plus unspecified large groups ordering nearly the whole menu.
• Cost signals are high: about 400 dollars for two in some reports, with a 2 hour table limit noted.

Drawn from 70 Google reviews of Cosme that mention a group, a private room or a celebration, read September 2026. The reviews below describe a group visit, private rooms and larger events first, with the critical ones kept in.

• private room birthday, party of 12

  Cosme is truly a hidden gem in NYC’s Flatiron District! ✨ I had the pleasure of attending a private birthday dinner for my best friend with a group of 12, and the experience was nothing short of EPIC. From the outstanding service to the incredible atmosphere, food, and drinks, everything was top-notch. 🍽️🍷 We dined in the private room at the back of the restaurant, which made our evening even more special. The duck carnitas 🦆🌮 and cauliflower tomalley 🥦🔥 are absolute must-tries—flavorful, unique, and beautifully presented. Without a doubt, 10/10! ⭐⭐⭐⭐⭐ My only two suggestions: It would have been nice to have the same server throughout the evening for a smoother experience. Also, with my 15 years in the NYC restaurant industry, I understand closing times, but we did feel a bit rushed toward the end ⏳. A little more breathing room would have made it perfect. That said, these are just small notes on an otherwise amazing experience. Highly recommend Cosme for anyone looking for an elevated yet warm and welcoming dining experience. Can’t wait to come back! 🙌 #CosmeNYC #HiddenGem #NYCEats #MexicanInspired #PrivateDining #Foodie #DuckCarnitas #FoodLover #EpicDinner #NYCRestaurants #FlatironDistrict #10OutOf10

• group dinner, party of 6

  Cosme is a true celebration of flavor and elevated Mexican cuisine. From the moment you walk in, the ambiance strikes the perfect balance—elegant, warm, and thoughtfully designed, with well-spaced tables that allow for comfortable conversation without overhearing your neighbors. The service was outstanding—attentive without being intrusive. Our party of six ordered everything at once and shared family-style, and the pacing of each course was spot on. We started with all the appetizers, and it was nearly impossible to choose a favorite. The scallops al pastor, the corn, and the bass were each exceptional in their own way—beautifully prepared and bursting with flavor. For mains, the standout was the duck carnitas—tender, rich, and perfectly executed. An off-menu tomahawk ribeye, served with house-made salsa and fresh corn tortillas, was another highlight—arguably better than what you’d find at a top steakhouse. Although Cosme offers a thoughtful wine list, we found ourselves captivated by the cocktails. The spicy margarita was a favorite, and the mezcal flight was both fun and expertly curated. Unfortunately, we didn’t have room for dessert—but that only gives us another reason to return. We’re already looking forward to our next visit.

• large party dinner

  We recently visited Cosme with a large party, and while the experience had its highlights, there’s definitely room for improvement. The small dishes we tried were unremarkable overall, but the standout of the evening was the duck carnitas, which was absolutely delicious. If I were to return, I’d likely focus on the larger dishes, such as the duck and the steak (which we didn’t try). The desserts were a definite highlight as well—beautifully presented and truly enjoyable. However, there was a small hiccup with the timing: our espresso and drink orders didn’t arrive with the desserts, and we had to remind the staff to bring them out. While this was a minor oversight, it did feel consistent with the overall service, which was a bit uneven throughout the meal. One piece of feedback for the waitstaff would be to provide clearer explanations when presenting dishes. It would also enhance the experience if plates were cleared more proactively. On one occasion, I asked a staff member to clear a plate, and while she did have her hands full she said “In just a minute” then forget entirely. A more attentive response, such as “I’ll be right back,” might have felt more considerate. That said, I understand how busy things can get, especially with a large party, and the staff were otherwise polite. With a bit more attention to detail, I think Cosme could provide a truly exceptional dining experience.

• private room birthday

  Loved it! We were seated in the private room for a birthday celebration - had an amazing evening!!

Good to know

Sleek Mexican spot with a big bar for locally sourced share plates, plus tequila and mezcal cocktails.

Hours, spend and amenities from Google. Private event hours and minimums are set by the restaurant.

Frequently asked questions

Does Cosme have a private dining room?

Yes. Cosme offers a private dining room for groups in Flatiron. Up to 14 seated; sleek black-walled PDR.

How much does it cost to book a private event at Cosme?

Guests at Cosme typically spend $100+ per person on a regular visit, according to Google, before drinks and tip. A private room or group booking is usually priced on a food and beverage minimum that scales from that per-head figure rather than a flat room fee. Minimums run higher on Friday and Saturday nights and through December. Contact Cosme for the current minimum and deposit terms.

When is Cosme open?

Cosme is open Monday to Wednesday 5:00 to 9:30 PM, Thursday to Saturday 5:00 to 10:00 PM, and Sunday 5:00 to 9:30 PM, serving brunch, lunch and dinner. The restaurant takes reservations for regular tables. Private rooms can often be booked outside these hours, including daytime events, so ask when you inquire.

What kind of restaurant is Cosme?

Cosme is a $$$$ Contemporary Mexican restaurant in Flatiron, New York City, rated 4.3 stars across 3,175 Google reviews. Google describes it as: Sleek Mexican spot with a big bar for locally sourced share plates, plus tequila and mezcal cocktails. It has a wheelchair accessible entrance.

What do guests say about group dining at Cosme?

Groups of 6 to 12 book the back private room or large tables for birthdays, client and colleague dinners, sharing family style. The private room sits at the back of the restaurant and reviewers used it for a birthday dinner of 12. Menu is a la carte and shared family style; servers advise how many dishes a group needs. Reviewers report parties of 6, 7, 8 and 12, plus unspecified large groups ordering nearly the whole menu. Cost signals are high: about 400 dollars for two in some reports, with a 2 hour table limit noted. Reviewers praise: back private room feels separate and quieter than the main dining room; servers recommend the right number of dishes for the party size; family style sharing with tortillas works well for a table; pacing of shared courses praised by a party of 6. Watch for: two hour table limits and rushed endings reported, including in the private room; main dining room gets very loud after 7pm; service can be uneven with large parties; slow clearing and missed drink orders. Based on 70 Google reviews of Cosme that mention a group, a private room or a celebration.

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