INGREDIENTS
1 lb
ground beef
3 Tablespoons
shallot
1 Tablespoon
rosemary
1 Tablespoon
worcestershire sauce
1 serving
salt and pepper
1 Tablespoon
extra virgin olive oil
4 slices
swiss cheese
2 Tablespoons
butter
8 ozs
mushrooms
1 clove
garlic
1 cup
beef broth
4
buns