Sausage Mushroom Breakfast Casserole
["2 1/4 c. seasoned croutons", "1 1/2 lb. bulk pork sausage", "4 eggs, beaten", "2 1/4 c. milk", "1 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)", "parsley sprigs (optional)"]
["Spread croutons in lightly greased 13 x 9 x 2-inch baking dish.", "Set aside.", "Cook sausage until browned, stirring to crumble; drain well.", "Sprinkle sausage over croutons."]
["croutons", "pork sausage", "eggs", "milk", "cream of mushroom soup", "mushrooms", "dry mustard", "Cheddar cheese", "tomato", "parsley sprigs"]