Meat Loaves With Spaghetti Sauce
["1 1/2 c. spaghetti sauce, divided", "1 1/2 lb. lean ground beef", "1/2 c. Italian breadcrumbs", "1 small onion, minced", "1 large egg", "1 1/2 tsp. salt", "1/4 tsp. pepper", "1 Tbsp. brown sugar", "1 1/2 Tbsp. white vinegar", "1 Tbsp. prepared mustard", "2 tsp. Worcestershire sauce"]
["Stir together 1/2 cup spaghetti sauce, ground beef, breadcrumbs, onion, egg, salt and pepper until just combined. Shape mixture into 2 (8-inch) loaves and place in a lightly greased 13 x 9-inch baking dish. Bake at 350\u00b0 for 25 minutes."]
["spaghetti sauce", "lean ground beef", "Italian breadcrumbs", "onion", "egg", "salt", "pepper", "brown sugar", "white vinegar", "mustard", "Worcestershire sauce"]