1 lb. ziti pasta, cooked al dente
1 lb. Italian sausage (sweet or hot)
1/2 lb. mushrooms, sliced
1/2 c. onion, diced
1 lb. Mozzarella cheese, sliced or grated
2 qts. spaghetti sauce

Fry sausage, mushrooms, and onion in skillet until sausage is browned. Mix the sauce and cooked pasta. Layer:

1. 1/2 of the pasta and sauce.

2. Sausage, mushrooms, and onions.

3. 1/2 cheese.

4. Rest of pasta and sauce.

5. Rest of cheese.

Bake at 350 degrees for 45 to 60 minutes.