INGREDIENTS
1 1/2
lbs Ground beef
20
Button mushroom
1/2 tsp
Garlic powder
1/2 can
Cream of mushroom soup
2 tbsp
Worcester sauce
1 tsp
Pepper, Fresh Ground
1/2 tsp
Salt
2 tbsp
Canola or olive oil
6
Hamburger buns
1 tbsp
Butter, unsalted
2 tbsp
Milk
6
slices Swiss cheese