Pizza Burgers
["4 jumbo hamburger buns", "1 1/2 lb. ground beef", "3 Tbsp. Parmesan cheese", "3 Tbsp. onion, finely chopped", "2 to 3 olives, sliced (optional)", "1 1/2 tsp. salt", "1 tsp. dried crushed oregano leaves", "3/4 to 1 c. spaghetti sauce", "6 to 8 slices American cheese", "cherry tomato halves"]
["Brown beef; drain well.", "Add ingredients listed, except buns, cheese and tomatoes.", "Combine ingredients well.", "Heat thoroughly."]
["jumbo hamburger", "ground beef", "Parmesan cheese", "onion", "olives", "salt", "oregano", "spaghetti sauce", "American cheese", "tomato halves"]