- 1 egg
- 1 (6 ounce) can tomato paste
- 1 tablespoon Worcestershire sauce
- 1 medium onion, chopped
- 1/2 cup grated Parmesan cheese
- 1/2 teaspoon seasoned salt
- 1/2 teaspoon salt
- 1/8 teaspoon pepper
- 2 pounds ground beef
- 8 slices Cheddar cheese
- 8 hamburger buns, split
- In a bowl, combine the first eight ingredients. Crumble beef over mixture and mix well. Shape into eight 3/4-in.-thick patties. Grill, covered, over medium heat for 5 minutes on each side. Top each burger with a cheese slice. Grill 1-2 minutes longer or until the cheese begins to melt. Serve on buns.