There are so many ways to use leftovers from a Thanksgiving feast. For example, mashed potatoes, sweet potatoes, cranberry relish, creamed onions, green veggies, stuffing, biscuits and of course, turkey and gravy are enough ingredients to make leftover recipes for the rest of Thanksgiving week. Never Toss Mashed Potatoes Again. They're great for leftover recipes Mashed potatoes can be made into three other leftover recipes: potato dumplings, potato cream soup, and gnocchi. Potato Dumplings Recipe Ingredients: 1 1/2 cups mashed potatoes leftovers 1/2 cup fresh chopped chives (reserve 1/8 cup for garnish) 1 tablespoon fresh chopped parsley 1 teaspoon baking...