Mushroom & Swiss Burgers

2 lbs. ground beef
2 T. worcestershire sauce
1 t. garlic powder
1 t. onion powder
1 t. salt
1 t. pepper
1 lb. button mushrooms, sliced
2 T. butter
1 t. dried thyme
8 slices Swiss cheese
2 T. worcestershire sauce
1 t. garlic powder
1 t. onion powder
1 t. salt
1 t. pepper
1 lb. button mushrooms, sliced
2 T. butter
1 t. dried thyme
8 slices Swiss cheese
1. In a large bowl combine the first six ingredients. Form into 8 burger patties.
2. Grill burgers over medium-high heat, 10 minutes a side. Top with a slice of cheese the last two minutes of cooking.
3. While the burgers are cooking, saute the sliced mushrooms, butter and thyme in a skillet until tender, about 10 minutes.
4. When burgers are finished, put on a bun and top with sautéed mushrooms.
5. Serve hot.