1/2 cup finely chopped onion
2 cloves garlic, minced
1/4 cup beef broth or white wine (optional)
Salt and pepper to taste
For Assembly:
4 slices Swiss cheese
4 hamburger buns, toasted
Lettuce leaves
Tomato slices
Pickles (optional)
Mayonnaise, mustard, or your favorite condiments
Instructions:
1. Prepare the Burger Patties:
In a large bowl, gently mix together the ground beef, salt, black pepper, garlic powder, onion powder, and Worcestershire sauce if using.
Divide the mixture into 4 equal portions and shape them into patties. Use your thumb to create a small indentation in the center of each patty to help it cook evenly.
2. Cook the Mushrooms:
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