Sausage-Mushroom Breakfast Casserole
["2 1/4 c. seasoned croutons", "1 1/2 lb. bulk pork sausage (hot or original)", "4 eggs, beaten", "2 1/4 c. milk", "1 (10 3/4 oz.) can cream of mushroom soup (undiluted)", "1 (4 oz.) can sliced mushrooms, drained", "3/4 tsp. dry mustard", "2 c. (8 oz.) shredded Cheddar cheese", "cherry tomato halves (optional)"]
["Spread croutons", "in", "a\tlightly greased 13 x 9 x 2-inch baking dish; set aside.", "Cook sausage until browned, stirring to crumble;", "drain", "well.", "Sprinkle", "sausage", "over", "croutons. Combine eggs, milk, soup, mushrooms and mustard; mix well and pour over sausage.", "Cover and refrigerate at least 8 hours or overnight."]
["croutons", "pork sausage", "eggs", "milk", "cream of mushroom soup", "mushrooms", "dry mustard", "Cheddar cheese", "tomato"]