Mozzarella Meat Loaf
["1 1/2 lb. ground beef", "1/2 to 1 c. bread crumbs", "1 egg, slightly beaten", "1 onion, chopped", "3/4 tsp. salt", "1/2 tsp. oregano", "1 (15 oz.) can tomato sauce", "1 can chopped mushrooms", "1 1/2 c. grated Mozzarella cheese"]
["Mix everything thoroughly, except tomato sauce, mushrooms and cheese.", "Stir in 3/4 cup tomato sauce.", "Press 1/2 meat mixture into a loaf pan.", "Sprinkle on cheese and mushrooms.", "Top with remaining meat mixture.", "Bake at 375\u00b0 for 30 minutes.", "Pour off excess grease; spread on remaining tomato sauce and bake for an additional 45 minutes."]
["ground beef", "bread crumbs", "egg", "onion", "salt", "oregano", "tomato sauce", "mushrooms", "Mozzarella cheese"]