Pronto Pizza Burgers
["1 lb. lean ground beef", "1/3 c. grated Parmesan cheese", "1 Tsp. chopped onion", "1 Tbsp. tomato paste", "1 tsp. dried oregano", "1/2 tsp. salt", "1/4 tsp. pepper", "4 English muffins, split", "8 tomato slices", "8 Mozzarella cheese slices", "additional oregano (optional)"]
["In a bowl, mix beef, Parmesan cheese, onion, tomato paste, oregano, salt and pepper, just until combined.", "Toast the muffins in broiler until lightly browned.", "Divide meat mixture among muffins.", "Broil 4 inches from the heat for 8 to 10 minutes or until meat is cooked.", "Top with tomato and cheese slices.", "Return to broiler until cheese is melted.", "If desired, sprinkle with oregano.", "Serve immediately.", "Yields 4 servings."]
["lean ground beef", "Parmesan cheese", "onion", "tomato paste", "oregano", "salt", "pepper", "muffins", "tomato", "Mozzarella cheese", "additional oregano"]