1 16oz. box ziti pasta, cooked according to package

1/2 lb. ground beef

1/2 lb. ground sausage

1/2 cup onion, chopped

2 jars (48 oz.) spaghetti

6-8 slices provolone cheese

1-1/2 cup shredded Mozzarella

1-1/2 cup sour cream

1/4 cup fresh basil

1/2 cup parmesan cheese

Cook pasta according to package and drain. Set aside.

Preheat oven to 350 degrees.

Grease a 11 x 7 casserole pan.

In a large skillet, brown the sausage and beef over medium heat. Add onions; saute until tender. Drain off fat and add spaghetti sauce; simmer for about 15 minutes.

In the greased baking dish, place about half of the pasta; top with a layer of provolone (I tear the cheese in half) and mozzarella cheese. Spread on a layer of half the spaghetti sauce mixture and sour cream.

Cover with remaining pasta, cheese and sauce; sprinkle a layer of Parmesan cheese and fresh basil.

Bake for about 30 minutes or until cheese and sauce are bubbly. Cool slightly and then serve.