4 c. unflavored croutons
8 oz. shredded cheddar cheese
4 c. milk
8 eggs, beaten
1 tsp. dry mustard
1/2 tsp. onion powder
1 tsp. salt

Place croutons and cheese in 9 x 13 pan. Mix rest of ingredients and pour over croutons and cheese. Let sit overnight, covered in refrigerator. Bake 45 minutes at 350 degrees.