→ Patties
01 -
1 pound ground beef (80/20 blend)
02 -
1 tablespoon Worcestershire sauce
03 -
1/2 teaspoon salt
04 -
1/2 teaspoon freshly ground black pepper
→ Vegetables
05 -
1 green bell pepper, thinly sliced
06 -
1 small yellow onion, thinly sliced
07 -
4 ounces mushrooms, sliced
→ Assembly
08 -
1 tablespoon olive oil
09 -
4 slices provolone cheese
10 -
4 hamburger buns, toasted