Carol's Breakfast Casserole

This is my mom's breakfast casserole that she makes anytime a lot of people are coming over. Sometimes she makes two if she knows Blake will be there (he's kind of a fan).

Breakfast Casserole
Box of Croutons (I use garlic/herb)
2 Cups Grated mild cheddar cheese
1 pound sausage
4 eggs
1 can Cream of Chicken Soup
3/4 teaspoon dry mustard
2 cups milk.

Spray large casserole dish, spread croutons all along the bottom. Brown sausage, drain, and spread over croutons, then spread cheese over sausage. Seperately, combine eggs, Cream of Chicken soup, dry mustard and milk. Pour mixture over sausage/ cheese. Bake for 60 minutes at 350 degrees.