Do Ahead Breakfast Casserole

Directions

1. 1
   Place croutons on bottom of buttered 8 x 11-inch or 9 x 13-inch dish.
2. 2
   Top with most of the cheese, then layer browned and drained sausage.
3. 3
   Beat eggs with 2 1/4 cups of milk and dry mustard.
4. 4
   Pour mixture on top of sausage and sprinkle on remaining cheese.
5. 5
   Refrigerate overnight.
6. 6
   Next morning, mix soup and milk; pour over top of casserole and bake 1 1/2 hours at 300°.
7. 7
   Serves 8 to 10.