Cheesy Ziti and Ground Beef
1 lb. dry ziti pasta
1 medium yellow onion, chopped
1 lb. lean ground beef
2 (26 oz.) jars spaghetti sauce
6 oz. package sliced non-smoked Provolone cheese
1 ½ c. sour cream
6 oz. finely shredded mozzarella cheese
2 Tbsp. grated Parmesan cheese
Bring a large pot of lightly salted water to a boil. Add pasta and boil until al dente, drain. In a large skillet, brown onion and ground beef. Add spaghetti sauce and simmer 15 minutes. Preheat oven to 350 degrees F.
Butter a 9x13 casserole dish. Layer in this order: ½ of the pasta, Provolone cheese spread to cover pasta, sour cream, ½ of the sauce mixture, remaining pasta, mozzarella cheese and remaining sauce mixture. Top with grated Parmesan cheese. Bake uncovered for 30 minutes or until heated through. Remove from oven and let rest for 5 minutes before serving.