The Chopped competitors take on ingredients that would usually be thrown away in hopes of turning edible trash into culinary treasures. In the appetizer round, all four chefs have zero reservations about the zero-waste theme, and they have big plans for the shrimp-centric basket. Then, a leftover dish and ignored vegetable tops create a culinary puzzle in the entrée round, and the two finalists make wise use of expired milk before time expires in the dessert round.