For the filling
01 -
1 tablespoon olive oil
02 -
1 small yellow onion, thinly sliced
03 -
1 green bell pepper, thinly sliced
04 -
4 oz (115 g) mushrooms, thinly sliced
05 -
12 oz (340 g) shaved ribeye or very thinly sliced sirloin
06 -
1 teaspoon Worcestershire sauce
07 -
3/4 teaspoon kosher salt, plus more to taste
08 -
1/2 teaspoon black pepper
For the stromboli
09 -
1 lb (450 g) pizza dough, at room temperature
10 -
1 tablespoon all-purpose flour, for rolling
11 -
1 1/2 cups (170 g) shredded provolone cheese
12 -
1 cup (115 g) shredded low-moisture mozzarella cheese
13 -
1 large egg, beaten
14 -
1 tablespoon unsalted butter, melted
15 -
1 small garlic clove, finely grated
16 -
1 tablespoon chopped parsley, for serving