In a bowl, combine the ground beef, mushrooms, red onion, garlic powder, onion powder, paprika, black pepper, and Worcestershire sauce. Mix together until combined.
Divide the mixture into 4 equal parts and form into patties.
Grill for 6-8 minutes on each side, or until cooked through.
Add the Swiss cheese to the top of the burgers and cook for an additional 1-2 minutes, or until the cheese is melted.
Serve the burgers on the buns with your favorite toppings.
Interesting Facts
Mushrooms are a great source of fiber, potassium, and B-vitamins.
Swiss cheese is a mild, nutty-flavored cheese that is perfect for burgers.
Grilling is a healthier way to cook burgers, as it reduces fat and calories.