Crunchy Layered Potato Casserole: Leftover Mashed Potatoes Never Had it So Good Joyce Del Rosario August 28, 2014 Bacon, Breakfast, Cheese, Cooking, Pork, Recipes 1 Comment On the rare occasion that I have leftover mashed potatoes, I know I can always look forward to something even better the next day. And that something is potato casserole. This fine creation consists of a layer...