Los Angeles Openings: ROFL Cafe, 54Twenty

Luckily for all of us, the staff of ROFL Café, the new Govind Armstrong (formerly of Post & Beam), aren’t rolling around the floor laughing, but we will say they do seem super jazzed to be there. The "Republic of Laughter" Cafe is apparently inspired by Dr. Madan Kataria, a laughing yoga guru, and the self-help author Tony "Fire-Walker" Robbins. There honestly is a certain feel-good vibe going on here, and the food is worthy of the atmosphere: beer-brined chicken, mussels and fries, Liege waffles, and Armstrong’s infamous short rib grilled cheese sandwich.

Also opening yesterday was 54Twenty, a mod-1960s diner located at 5420 Hollywood Blvd.,  that serves coffee-spiked fries, purple mashed potatoes, and brunch and lunch alllllll day long. We’re guessing that the Silver Lake and Los Feliz crowd will happily walk a few blocks for these modern twists on the BLT or the steak and eggs.

Short Stack: Openings

New York

PetalBelle: The team behind Lombardi’s opens a charming Soho shop specializing in Belgian Liege waffles.

Botanica: New Red Hook bar serves up classic cocktails and, for beer snobs, a 25-ounce brew for $35.

Whiskey Tavern: New Chinatown bar — a re-incarnation of the former Baxter Pub – boasts cheap beer, an outdoor garden, and a bar menu which includes Hostess cupcakes.

Williamsburger: Despite its cheesy mantra (“beefing up hipsters”), this new burger joint promises to be a welcome addition to Williamsburg.

Los Angeles

8 oz.: Celebrity chef Govind Armstrong transforms his former restaurant, Table 8, into an upscale burger bar.

Panini Cafe: This local chain, serving casual Italian fare, recently opened its newest location in South Park.

Suede Bar & Lounge: A chic new lounge is open at the Westin Bonaventure in the Financial District.