Mozzarella Meat Loaf
["1 1/2 lb. ground beef", "1/2 c. dry bread crumbs", "1 egg, slightly beaten", "1 tsp. instant minced onion", "3/4 tsp. salt", "1/2 tsp. oregano", "1 (15 oz.) can tomato sauce", "1 1/2 c. shredded Mozzarella cheese", "1 (4 oz.) can mushrooms (optional)"]
["Combine first 6 ingredients with 3/4 cup tomato sauce in bowl, mixing well.", "Pat meat mixture into 9 x 13-inch rectangle on waxed paper.", "Sprinkle with cheese and mushrooms.", "Roll as for jelly roll, sealing edge and ends.", "Place seam side down in 8 x 12-inch baking pan.", "Bake at 375\u00b0 for 30 minutes.", "Pour off drippings. Spoon remaining tomato sauce over loaf.", "Bake for 30 minutes longer.", "Yield:", "8 servings."]
["ground beef", "bread crumbs", "egg", "onion", "salt", "oregano", "tomato sauce", "Mozzarella cheese", "mushrooms"]