Use Up Your Leftover Mashed Potatoes With One of These Unique Recipes

One of the easiest ways to use up leftover mashed potatoes is by using it in soup. It not only helps make the soup immensely flavorful, but mashed potatoes will help create a creamy soup you'll want to make every time the weather gets colder. This recipe includes a basil pesto, lots of garlic, and bacon. We're drooling already.