Tater Tot Sausage Breakfast Casserole

2 lb hot breakfast sausage
1 (30-32oz) bag frozen tater tots
1 tsp salt
1/2 tsp pepper
1/4 tsp garlic powder
1/4 tsp onion powder
1-1/2 cups shredded cheddar cheese
1/2 cup mozzarella cheese
8 eggs
2 cups milk

Preheat oven to 350 degrees. In a large skillet, cook sausage until no longer pink. Drain fat. In a large bowl, toss together tater tots, cooked sausage and cheeses. Pour into a lightly greased 9x13-inch pan. Whisk together eggs, salt, pepper, garlic powder, onion powder and milk. Pour over tater tot mixture. Bake uncovered for 60 - 70 minutes, or until eggs are set.