Do you have lots of mashed potatoes left over? Try this easy recipe for Leftover Mashed Potato Pancakes with Cheese! Made with 4 simple ingredients and ready in just 15 minutes, they make the best quick meal or appetizer. Served with applesauce or your favorite toppings, they are great for breakfast or lunch. They also make a great dinner side dish! Pan fried to crispy perfection, the inside turns out super fluffy and cheesy! Click through now to learn how to make this homemade savory treat!