All-American Pizza Burgers

Ingredients

 * 1½ lbs lean ground beef
 * 1½ lbs turkey sausage
 * 1½ teaspoons salt
 * 1 teaspoon pepper
 * vegetable cooking spray
 * 1 (14 ounces) jar pizza sauce, divided
 * ¾ cup fresh grated Parmesan cheese
 * 1 medium onion, chopped
 * 12 slices mozzarella cheese
 * 12 hamburger buns

Directions

 * 1) Combine ground beef, sausage, salt, and pepper
 * 2) Coat grill rack with cooking spray.
 * 3) Place on grill over medium-hot coals.
 * 4) Place patties on rack and cook, uncovered, 5 minutes on each side or until done.
 * 5) Sprinkle with Parmesan cheese and if desired, onion.
 * 6) Serve on buns with mozzarella cheese and remaining pizza sauce.