Baked Ziti

1 lb. dry pasta (penne)
1 small onion
1 - 2 lbs. ground beef
2 24 oz. jars of Bertolli Tomato & Basil spaghetti sauce
8 oz. sliced provolone
16 oz. light sour cream
8 oz. shredded mozzarella
2 tbs. grated Parmesan

Brown onion and meat in 1-2 tbls. olive oil. Also prepare pasta, drain.
Preheat oven to 350 degrees. Spray a 10.5x14.75 (4 qt.) baking dish with cooking spray. Layer 1/2 ziti, all provolone, all sour cream, 1/2 meat, one jar of sauce, remaining ziti, 6 oz. mozzarella, remaining meat and 2nd jar of sauce. Top with remaining mozzarella and 2 tbs. Parmesan. Bake 35 minutes or until cheese is melted.
*You can make this in two smaller pans and freeze one, or give one away.