Italian Crescent Casserole
["1 lb. ground beef", "1/4 c. chopped onion", "1 c. spaghetti sauce", "1 1/2 c. shredded Mozzarella", "1/2 c. sour cream", "1 can refrigerated crescent rolls", "1/3 c. Parmesan cheese", "2 Tbsp. butter, melted"]
["Preheat oven to 375\u00b0.", "In large skillet, brown beef and onion; drain.", "Stir in spaghetti sauce.", "Heat through."]
["ground beef", "onion", "spaghetti sauce", "Mozzarella", "sour cream", "crescent rolls", "Parmesan cheese", "butter"]