Openings: Davis Square’s Oat Shop has opened (22A College Ave. at Winter Street), focusing on — what else? — oatmeal. Start your day with sweet bowls like apple pie or banana PB, or get frisky with savory offerings like sweet potato coconut curry, customized with smoked salmon or kale chips. The restaurant is open from 7 a.m. until 3 p.m. on weekdays and from 8 a.m. until 4 p.m. on Saturdays.
South End French restaurant and wine bar Frenchie (560 Tremont St. at Waltham Street) is slated to open this weekend, says owner Sandrine Rossi, who runs the spot along with Loic Le Garrec. Both hail from Petit Robert Bistro.
Relocations: In other French-restaurant news, Troquet will close its old location (140 Boylston St. at Tremont Street) on Jan. 28. The restaurant will reopen as Troquet on South (107 South St. at Tufts Street) shortly thereafter. This version will have a bigger kitchen and a bigger wine cellar, plus a more spacious bar.
Chefs: Brandon Baltzley replaces executive chef Patrick Campbell at Cambridge’s Café ArtScience (650 E. Kendall St. at Linskey Way). Baltzley’s worked at Brookline’s late, lamented Ribelle and has cooked for Cape Cod pop-up series the Buffalo Jump. Baltzley has an interesting backstory: He’s the author of “Nine Lives: A Chef’s Journey From Chaos to Control,” a memoir about his struggles with substance abuse. A release says to look forward to “unexpected ingredients and flavor combinations” while he’s at Café ArtScience. Bar director Todd Maul, meanwhile, will continue his mad-scientist bar program with tools like centrifuges and rotary evaporators.
Expansions: Union Square Donuts opened a branch in Brookline (409 Harvard St. at Naples Road) Jan. 19. Get your maple-bacon and bourbon-caramel fix daily beginning at 7 a.m.
News for meat-loving commuters: Tasty Burger will open at Avalon North Station (1 Nashua St. at Red Auerbach Way) this spring, a rep for the mini-chain confirms, with dine-in seating, wine, and beer.