Baked Ziti - RS Compassionate Service

1 lb dry ziti pasta
1 onion, chopped
1 lb lean ground beef
2 (26 oz) jars spaghetti sauce
6 oz provolone cheese, sliced
1 1/2 c sour cream
6 oz mozzarella, shredded
2 T grated Parmesan cheese

Bring large pot of lightly salted water to boil. Add pasta and cook about 8 minutes.

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

Preheat oven to 350°. Butter 9x13" baking dish. Layer as follows: 1/2 ziti, 1/2 Provolone, sour cream, 1/2 sauce mixture, remaining ziti, mozzarella cheese and remaining sauce mixture. Top with Parmesan.

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