I'm not sure where this recipe originated, but it's one of my family's summertime favorites. I usually serve these juicy mushroom burgers when we have company. The guests rave about the flavorful cheesy topping. It's fun to serve a burger that's a little more special. —Wendy Sommers, West Chicago, Illinois
In a large bowl, combine the beef, onion, garlic salt and pepper. Shape into 6 patties, 3/4 in. thick.
In a small bowl, combine the cheese, mushrooms, bacon and mayonnaise; chill.
Grill burgers, covered, over medium heat until a thermometer reads 160°, 5-7 minutes on each side. During the last 3 minutes, spoon 1/4 cup of the cheese mixture onto each burger. Serve on buns, with lettuce and tomato if desired.
Test Kitchen Tips
Using lean ground beef instead of beef that’s 80% lean saves 45 calories per 4-ounce serving of beef. Lean ground beef is also 29% lower in saturated fat.
Sharp cheddar cheese has been aged longer than regular cheddar. As cheese ages, its flavor becomes more pronounced. Using aged cheese in a recipe can add complexity and rich flavor, even to humble favorites like mac ’n’ cheese.