Lightly coat an 8 x 8 or 2 quart baking dish with cooking spray.
Spread the shredded potatoes evenly in the bottom of the baking dish.
Sprinkle with your favorite pizza toppings.
Whisk together eggs, milk, Italian seasoning, garlic powder, pepper and salt. Pour the egg mixture over the Pizza Breakfast Casserole.
Cover and refrigerate overnight.
In the morning, preheat the oven to 350 degrees. Bake the Pizza Breakfast Casserole for 50 minutes.
Remove the casserole from the oven and spread pizza sauce across the top. Sprinkle with Italian cheeses.
Return it to the oven for 10-15 minutes. Let stand for 10 minutes before serving. Enjoy!