For the chicken filling
01 -
2 lb (900 g) boneless skinless chicken breasts
02 -
1 large yellow onion, thinly sliced
03 -
1 green bell pepper, thinly sliced
04 -
8 oz (225 g) sliced mushrooms, fresh or canned and drained
05 -
1/2 cup (120 ml) low-sodium beef broth
06 -
1 tablespoon Worcestershire sauce
07 -
2 teaspoons olive oil
08 -
1 teaspoon garlic powder
09 -
1 teaspoon dried oregano
10 -
1 teaspoon kosher salt
11 -
1/2 teaspoon black pepper
For the sandwiches
12 -
6 crusty hoagie rolls, split
13 -
6-8 slices provolone cheese
14 -
Optional toppings such as pepperoncini, hot sauce, or pickles