It’s baaaaa-ck. Restaurant Week Boston (or, Dine Out Boston) comes in like a lamb this March with sheep-ish dishes peppering the prix fixe menus. Check out the upcoming plates and select Which Dish Would You Choose? to be entered for two tickets to May’s Lamb Jam BBQ Bash. Options for grazing include herb-stuffed lamb belly from The Hourly, barbecue ale-braised lamb shank from Henrietta’s Table and 15-hour lamb shoulder from Doretta Taverna. Pick the dish that gets your appetite rumbling to be a part of the ticket raffle.