1 tbsp Worcestershire sauce π (optional)
For the Mushroom Topping:
2 cups sliced mushrooms π
1 tbsp butter π§
1 tbsp olive oil π§΄
1/2 cup finely chopped onion π§
2 cloves garlic, minced π§
1/4 cup beef broth or white wine (optional) π·
Salt and pepper to taste π§
For Assembly:
4 slices Swiss cheese π§
4 hamburger buns, toasted π
Lettuce leaves π₯¬
Tomato slices π
Pickles (optional) π₯
Mayonnaise, mustard, or your favorite condiments π₯
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. π₯©π§
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