Upside-Down Pizza - cooking recipe

Ingredients

1 (16 oz.) jar Ragu cooking sauce
1 small can mushrooms
1 1/2 lb. Italian sausage or pork sausage, seasoned with 1/2 tsp. basil, 1/2 tsp. fennel and 1/4 tsp. marjoram

Preparation

Brown sausage and drain; add remaining ingredients and put in a 13 x 9 x 2-inch pan.
Lay 8 ounces thinly sliced Mozzarella cheese over meat mixture.