Cheeseburger, gluten free

Ingredients

• 4 pcs Hamburger buns, mixed-grain, gluten free
• 450 g Ground beef, lean
• 2 tbsp Worcestershire sauce
• 230 g Mushrooms, sliced
• 2 pcs Onions, chopped
• 60 g Swiss cheese, shredded
• 1/2 tsp Black pepper
• 1 pinch Salt

Method

1. Preheat grill.
2. Heat non-stick skillet over medium-high heat and add some olive oil.
3. Add onions and season with half of salt and pepper; slowly cook for 10-15 minutes, stirring occasionally until brownish.
4. Remove from the pan.
5. Add mushrooms and remaining salt and pepper; cook for 5 minutes, stirring.
6. Then set aside.
7. Combine sauce and beef in large bowl.
8. Form 4 patties and press between palms to flatten to 1-cm thickness.
9. Set burgers onto grill and sprinkle with some olive or other canola oil; grill for 5 minutes per side.
10. Meanwhile, toast the burger rolls inside.
11. Place patties into burger rolls, top with cheese, onions, and mushrooms.
12. Set under broiler for 2 minutes or until cheese melts.
13. Serve immediately.