01 -
Preheat oven to 350ºF. Lightly spray a 9x13-inch baking dish with cooking spray.
02 -
In a large skillet, cook the breakfast sausage over medium heat until no longer pink. Drain any excess fat.
03 -
In a large bowl, combine frozen tater tots, cooked sausage, and both cheeses. Toss until evenly mixed. Transfer the mixture into the prepared baking dish.
04 -
In a separate large bowl, whisk together the eggs, milk, salt, black pepper, garlic powder, and onion powder until well combined.
05 -
Pour the egg mixture evenly over the tater tot mixture in the baking dish.
06 -
Bake the casserole uncovered in the preheated oven for 60-70 minutes, or until the eggs are fully set.
07 -
Cover and refrigerate or freeze the casserole if not baking immediately. Thaw completely before reheating.