Baked Ziti

1 pound dry ziti or penne pasta
1/2 onion, diced
1/2 tsp. minced garlic
1 lb. ground beef (or Italian sausage)
2 jars spaghetti sauce
6 oz. provolone, sliced
1 1/2 c. sour cream
1 C. mozzarella

Directions:
1. Cook pasta until al dente (8-9 minutes)
2. Brown onion, garlic, and meat. Add sauce and simmer 15 min.
3. Combine pasta and meat sauce.
4. Preheat oven 350 degrees, and butter a 9x13 pan

Layers:
1. Pour 1/2 ziti and meat sauce in pan
2. Cover with slices of provolone
3. Cover provolone with sour cream
4. Pour last of ziti and meat sauce in pan
5. Top with mozzarella

Cover and bake for 30 minutes.

I have a picture of this, but I can't find my camera attachment thingy. Anyway, this is super easy and really good.