12 Best Restaurants in Union Square, Civic Center, and the Tenderloin, San Francisco

This green and white, high-ceilinged space offers what some claim are the best croissants—not only outside France, but in the world. You simply can't go wrong with anything on the menu. Try for the almond croissant or anything with berries, and enjoy it in-store or to go. The original location thrives in the Inner Richmond ( 397 Arguello Blvd.).

Casual eaters of Americanized Thai food probably won’t recognize much at this modern, Michelin-star restaurant, but travelers to Thailand will likely see a few familiar items on the short, focused menu. Ingredients are sourced—more accurately, tracked down with dedication—from regional purveyors to create a range of powerful, unique dishes ranging from a mushroom curry mousse with crispy rice cakes to spicy charred squid.

Inspired but not defined by the chef's native Hawaii, Ravi Kapur's lively restaurant is known for big-hearted, high-spirited cooking. It offers contemporary riffs on staples like poke and Spam, as well as squid served with crispy tripe and Manila clams in coconut curry. The dining room and front bar area are perpetually packed and are dominated by an enormous photo of a beaming woman who happens to be none other than the chef's mother.

Robin's-egg-blue banquettes and metal chairs in different colors add to the cheer at this sunny spot. Drop in for hearty local coffee and excellent breakfast and lunch sandwiches, including those on the popular cragel, a combination of a croissant and a bagel.

The good times roll at the city's definitive choice for New Orleans cooking. Brunch is the preferred meal here---it's worth the trip for the five $5 breakfast sandwich options---but it's just as good to come for a weekday lunch of gumbo or a fried chicken dinner when the scene is a little more subdued.

Dark and sexy, this rooftop restaurant delivers glamour and innovative Japanese-Peruvian dishes such as king oyster mushroom tostadas and Peruvian sea bass ceviche on a menu that includes small bites, several prix-fixe options, and sushi and raw bars. The DJ in the lounge area gives the indoor space a club vibe, and islands of plants divide seating areas in the large restaurant into more intimate spaces. Floor-to-ceiling windows look onto the city and the large outdoor dining area, perfect for sunset.

Try something beyond the same old pad thai at this authentic Thai standby. Thai herb sausage and papaya salad with salted egg are good appetizers to share, while the pork belly with crispy rind and basil leaves and duck larb (meat salad) come packed with flavor and heat. The food is such a hit that the restaurant has two other spots in the Mission and Hayes Valley. It's a favorite for late-night dining.

Look for the lines on busy Geary Street where Union Square blurs into the edges of the Tenderloin and you'll find what eager ramen fans consider the city's best bowl. This was the first U.S. outpost of a prominent Tokyo-based ramen shop, and the quality and consistency of its noodles and broths continue to be spectacular. The decor on the walls is primarily a series of graphics explaining the scientific aspects of ramen; if you want a doctorate in ramen, this is a good place to start.

It's hard to describe this ode to France's many culinary specialties without a map diagram, as this is a full six-story, four-concept venue just a block from Union Square. The shimmering gem of the house is upstairs, the exquisite fine-dining tasting menu space O' by Claude Le Tohic (tasting menu from $210); the other floors house a modern cocktail bar (Elements), a ground-floor bakery and patisserie, and a more casual and worthwhile bistro and grill.

Stop by this hole in the wall for some of the best—and cheapest—take-out banh mi in the city. Favorites include thit (roast pork) and ga (roast chicken), but the doors close at 6 at the latest.

When you're not quite sure what you want, pop into this brand-new two-story food hall by IKEA's sister company and see what the 11 food businesses are serving up. Downstairs, a beer bar, burger place, bakery/sandwich shop, and soft-serve counter are permanent installations. Upstairs you'll find two bars and five local food purveyors, which may change. Current offerings include vegan Puerto Rican food at Casa Borinquena, spicy Chinese at Momo Noodle, and Curry Up Now's Indo-Californian cuisine. Open market hall-style seating means you don't have to select just one.