01 -
1 lb ground beef
02 -
1 tablespoon olive oil
03 -
1 medium yellow onion, diced
04 -
1 green bell pepper, diced
05 -
½ cup beef broth
06 -
1 tablespoon Worcestershire sauce
07 -
1 tablespoon cornstarch
08 -
1 teaspoon garlic powder
09 -
1 teaspoon kosher salt
10 -
½ teaspoon ground black pepper
11 -
1 cup shredded provolone or mozzarella cheese
12 -
4 buns, toasted