Baked Ziti

1 pound dry ziti pasta

1 onion chopped

1 pound lean ground beef

2 (26 oz) jars spaghetti sauce

6 oz. provolone cheese, sliced

1 1/2 cups sour cream

6 oz mozzarella cheese, shredded

2 tablespoons grated parmesan cheese

Bring a large pot of lightly salted water to a boil.  Add Ziti pasta, and cook until al dente, about 8 minutes, drain.

In a large skillet brown onion and ground beef over medium heat.  Add spaghetti sauce and simmer 15 minutes.

Preheat the oven to 350 degrees.  Grease a 9x13 baking dish.  Layer as follows:  1/2 of the ziti, provolone cheese, sour cream, 1/2 sauce mixture, remaining ziti, mozzarella cheese and remaining sauce mixture.  Top with grated Parmesan cheese.

Bake for 30 minutes in the preheated oven or until cheeses are melted.

*I got this recipe from Marissa and it is so good! Some suggestions:  Use a meat flavored sauce, it will give the dish great flavor.  You can mix half ricotta and half sour cream.  You could use half italian sausage half ground beef to mix it up.  This dish makes a lot and tastes even better as leftovers!