Ingredients: - 1 pound ground beef - 1/4 cup breadcrumbs - 1/4 cup finely chopped onion - 1 clove garlic, minced - 1 egg - 1 tablespoon Worcestershire sauce - Salt and pepper to taste - 4 slices Swiss cheese - 1 cup sliced mushrooms - 2 tablespoons butter - 4 burger buns Steps: 1. In a mixing bowl, combine the ground beef, breadcrumbs, onion, garlic, egg, Worcestershire sauce, salt, and pepper. Mix well until all the ingredients are evenly incorporated. 2. Divide the mixture into equal portions and shape them into patties. Make sure to press the patties gently to avoid overworking the meat. 3. Preheat a grill or a skillet over medium-high heat. Cook the patties for about 4-5 minutes per side, or until they reach your desired level of doneness. 4. In a separate skillet, melt the butter over medium heat. Add the sliced mushrooms and sauté until they are tender and golden brown. 5. Place a slice of Swiss cheese on top of each cooked patty. Allow the cheese to melt slightly. 6. ... Leer más