Holiday brunch casserole

Put bread in greased 9x13 baking dish. Sprinkle with cheese. Sprinkle sausage over cheese and bread cubes. Mix eggs, milk, dy mustard, onion powder, salt and pepper, mushrooms, and chopped tomatoes together in bowl, pour over

 

Sausage .. Cover and chill overnight. Bake @ 325 for 1 hour uncovered