Easy Italian Casserole
["1 lb. ground beef", "1 medium onion, chopped", "1 tsp. Italian seasoning", "1 (8 oz.) can tomato sauce", "15 oz. can beef ravioli", "15 oz. can spaghetti", "1/2 c. grated Cheddar cheese"]
["Brown the ground beef and onion.", "Drain and mix with the other ingredients, except cheese.", "Bake for 45 minutes at 325\u00b0.", "Remove from oven.", "Sprinkle with cheese.", "Return to oven until cheese melts."]
["ground beef", "onion", "Italian seasoning", "tomato sauce", "beef ravioli", "spaghetti", "Cheddar cheese"]