1 lb. sage sausage
2/3 c. onion, chopped
20 large mushrooms
1 pkg. dry chicken gravy mix
1 egg, beaten
1 c. dry bread crumbs
1 tsp. Worcestershire sauce
1/4 c. Parmesan cheese

Brown and drain sausage and onions. Wash mushrooms; discard stems. Place mushroom cups (cavity side up) in a greased 9 x 13-inch dish. Prepare chicken gravy mix as directed on package. Add all ingredients except cheese and mushrooms to gravy. Mix well. Divide mixture evenly in each mushroom cup. Top with cheese.

Bake at 400°F for 10 to 15 minutes.