Leftover Pizza Breakfast Casserole

0 Preheat oven to 350 degrees F.
1 Spray a 9x9-inch baking dish with cooking spray.
2 Cut left over pizza into bite sized squares and arrange in the baking dish.
3 Mix eggs, cooked sausage, milk, mozzarella cheese, onion, butter, garlic, oregano, and salt together in a large bowl.
8  Pour over pizza pieces.
4 Top with Parmesan cheese and red pepper flakes.
5 Cover dish with aluminum foil.
6 Bake for 45 minutes.
7 Remove foil and continue baking until eggs are set and Parmesan cheese is melted, about 20 more minutes.
9 Serve hot.