Fresh off the opening of its swanky downstairs cocktail bar, Atera will begin a guest dinner series next month. Chef Matthew Lightner's going to share his kitchen with David Toutain (formerly of L'Agapé Substance) and Rafael Costa e Silva (Mugaritz in Spain) for a two-part dinner series. First up is Toutain from January 16 to 19, and then Costa e Silva from the 23rd to 26th. Each meal is $185 per head (not too much more than what the restaurant typically charges, and 10 percent of proceeds will go toward Sandy relief). There are two seatings per night at 5:30 and 9:30 p.m. E-mail firstname.lastname@example.org or call 212-226-1444 for reservations.