Finely diced mushrooms are added into Ground Beef patties and grilled to juicy perfection. Top with your favorite cheese and you've just met your new favorite burger!
Combine ground beef, mushrooms, egg white, garlic, salt and pepper in large bowl, mixing lightly but thoroughly. Lightly shape into four 1/2-inch thick patties.
Place patties on grid over medium, ash-covered coals. Grill, covered, 8 to 10 minutes (over medium heat on preheated gas grill, covered, 7 to 9 minutes) until instant-read thermometer inserted horizontally into center registers 160°F, turning occasionally.
Place burgers on bun bottoms. Top evenly with cheese. Close sandwich.