Do Ahead Breakfast Casserole
["2 1/2 c. herbed croutons", "2 c. shredded Cheddar cheese", "1 1/2 lb. hot or mild sausage", "4 eggs", "2 1/4 c. milk", "3/4 tsp. dry mustard", "1 can cream of mushroom soup", "1/2 c. milk"]
["Place croutons on bottom of buttered 8 x 11-inch or 9 x 13-inch dish.", "Top with most of the cheese, then layer browned and drained sausage.", "Beat eggs with 2 1/4 cups of milk and dry mustard.", "Pour mixture on top of sausage and sprinkle on remaining cheese.", "Refrigerate overnight.", "Next morning, mix soup and milk; pour over top of casserole and bake 1 1/2 hours at 300\u00b0.", "Serves 8 to 10."]
["croutons", "Cheddar cheese", "sausage", "eggs", "milk", "dry mustard", "cream of mushroom soup", "milk"]