The grand opening for Paciarino is taking place today as is the first of the new season of cooking classes from Piatto per Tutti. On Wednesday the biweekly Winter Farmers’ Market will be held in Monument Square. Wednesday evening the Slow Food Portland Book Group is meeting to discuss The Fly-Truffler by Gustaf Sobin, and there’s a cooking class at Black Tie. Friday morning the Ready brothers will be speaking at the Egg & Issues event about their business Catch a Piece of Maine. On Saturday there’s a class on gluten-free Italian cooking in Falmouth. For more information on these and other upcoming food happenings in the area, visit the event calendar.