Since 1969, restaurant, hotel, travel & other witty reviews by a handpicked, worldwide team of discerning professionals—and your views, too.

31st Union

5 S. Ellsworth Ave. (Baldwin St.) Send to Phone
The locavore ethic dominates at this small, casual tribute to the 31st state in the Union.


Lunch Tues.-Fri., Dinner Tues.-Sun.
Open late Fri.-Sat.

* Click here for rating key

31st Union, San Mateo, CA

Operations may be disrupted due to COVID-19. Be sure to contact the restaurant to find out its current status and offerings.

31st Union Restaurant Review

: Bright, clean and local describes the food at this small corner eatery dedicated to all that California has to offer. Reclaimed barn planks on the wall, polished concrete floors and metal conduit pipe fixtures create an eco-chic feel, while a mix of communal and individual tables and a grape stake-fronted bar make for a friendly atmosphere appropriate for a casual date or group gathering. The heirloom tomato BLT uses butter-toasted bread to frame the sweetness of ripe tomatoes against the salty of thick sliced bacon and a delicate house-made mayonnaise. Small plates include three variations of deviled eggs that might leave someone fighting for the last one. Tomato bisque is so creamy it belies its vegan recipe. Smoked duck tacos and a grilled little gem salad are other typical offerings. The dessert list is short, but seasonal pocket pies hearken to the Pop Tarts of your youth. Wines by the glass and on tap, as well as a selection of beers, are sourced entirely from California. Happy hour from 5 p.m.-6:30 p.m. Tuesday through Friday, and 10 p.m.-midnight Friday and Saturday, offers draft wine and beer and wallet-friendly bites.

Belgian chocolates

Coffee and chocolate make a delicious combination. ENJOY 10% OFF YOUR ENTIRE ORDER with GAYOT's exclusive promo code.


Coffee and chocolates make a delicious combo. ENJOY 10% OFF YOUR ORDER with GAYOT's exclusive promo code.

Stay in a romantic mood with this Rosé Champagne. Read GAYOT's review.