Pasta in a Pot Recipe

Cook pasta according to package directions; drain. Brown ground beef in large skillet with onion soup mix. Drain off any fat. Stir in spaghetti sauce, Simmer. Spray a 9 x 13 baking dish with cooking spray. Place drained shells on bottom of baking dish. Spread sour cream over shells. Lay cheese slices over sour cream. Spread meat sauce over cheese slices and top with shredded cheese. Bake at 350° until heated through, about 30 - 45 minutes.