INGREDIENTS
8
slices Bacon, cooked
1 1/2
lbs Certified angus beef ground chuck
2 tbsp
Parsley
2
Portabella mushrooms
1/2
Red onion
2 tbsp
Dijon mustard
1/2 cup
Lea & perrins worcestershire sauce
1/2 cup
Mayonnaise
1
Salt and freshly ground black pepper
4
Hamburger buns
4
slices Cheddar cheese