Spread mayonnaise, mustard, or your favorite condiments on the bottom half of each bun.
Place a lettuce leaf on each bun, followed by a slice of tomato and pickles if using.
Add the cooked burger patty with melted Swiss cheese on top of the vegetables.
Spoon the sautéed mushrooms over the cheese.
Top with the other half of the toasted bun.
5. Serve:
Serve the Swiss Mushroom Burgers hot with your favorite side dishes like fries, chips, or a salad.
Enjoy your delicious Swiss Mushroom Burger!
