Aside from the entertaining seminars and enticing offerings at the Grand Tasting, one of the coolest things about the Food & Wine Classic is the fact that you're constantly running into celebrity chefs. Last year, we spotted Padma Lakshmi and got chatty with Rocco Dispirito; this year had its share of celeb chef sightings as well. Just about everybody in the culinary world — from Alex Guarnaschelli to David Chang — was in town. Can you guess which star chefs we spotted around the festival? Find out when you take our quiz!