I had some leftover Applegate pepperoni the other day and was looking for something a bit different to do for breakfast. I grow so tired of the standard eggs and bacon. I love a good baked egg dish, especially my Shirred Eggs with Ham, or really anything that can be whipped together and baked in one dish.
My favorite toppings for pizza are pepperoni and mushrooms, so I threw both of those into this frittata along with sautéed spinach and fresh tomatoes. Feel free to sauté any vegetables you have on hand in your refrigerator and play with the flavors.