2 1/4 c. seasoned croutons
1 1/2 lb. bulk pork sausage
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
Parsley sprigs, optional

Spread croutons in a 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. Combine eggs and the next 4 ingredients; mix well and pour over sausage. Cover and refrigerate at least 8 hours or overnight.

Remove from refrigerator; let stand 30 minutes. Bake uncovered, at 325 degrees for 50-55 minutes. Sprinkle cheese over top; bake an additional 5 minutes or until cheese melts. Garnish casserole with cherry tomatoes and parsley, if desired. Yield 8 servings.