Only a good cause could get Radius to open on a Sunday evening…for the third year in a row. Radius chef de cuisine Brian Remier welcomes chefs Luis Morales and Jeremy Sewall from sister restaurants Via Matta and Great Bay respectively as well as pastry chef Joanne Chang of Flour and No. 9 Park’s Barbara Lynch for the annual Big Sister/Little Sister fundraiser on Sunday, September 21st. The event features signature dishes prepared by the assembled chefs, a brief program and a live auction and raffle. Big Sister pairs a Big Sister/Little Sister with each celebrity chef as they prepare their dish. Tickets are $125 each or $200 per pair. To purchase tickets call 617.236.8060.