Italian Casserole - cooking recipe

Ingredients

4 to 5 Italian sausages, cut in 3/4-inch pieces *
2 (4 oz.) cans sliced mushrooms
1 large or 2 small onions
1/4 tsp. pepper
1 tsp. salt
6 slices Mozzarella cheese
2 (10 oz.) cans marinara sauce or homemade
1/2 lb. elbow macaroni, cooked and drained

Preparation

*Small meatballs may be substituted for sausage or use both.