Italian Shells Casserole
["2 lb. medium macaroni shells", "2 lb. ground chuck", "1 tsp. salt", "1/2 tsp. pepper", "1 qt. marinara sauce", "1 pt. sour cream", "16 oz. shredded Provolone cheese", "16 oz. shredded Mozzarella cheese"]
["Cook shells until al dente.", "Rinse and drain.", "Brown ground chuck.", "Add salt and pepper.", "Stir in marinara sauce.", "Simmer 20 minutes.", "Line bottom of lasagna pan with half of shells.", "Spread half of sour cream over shells.", "Sprinkle half of each cheese over this.", "Repeat second layer.", "Cover pan and bake at 350\u00b0 for 40 minutes.", "Uncover and bake until cheese is melted and lightly browned."]
["macaroni shells", "ground chuck", "salt", "pepper", "marinara sauce", "sour cream", "Provolone cheese", "Mozzarella cheese"]