Preheat the oven to 450 degrees F. Line a baking sheet with aluminum foil.
Make the filling: Mix the mozzarella, ricotta, basil, scallions, 1/4 cup parmesan and the breadcrumbs in a medium bowl until combined. Divide the pizza dough into 4 equal pieces. Roll out each piece on a lightly floured surface into a 7-to-8-inch round.
Spoon one-quarter of the filling onto one half of each dough round, leaving a 1/2-inch border. Lightly brush the edges of the dough with some of the beaten egg; fold the dough over the filling and crimp the edges with a fork to seal. Transfer the calzones to the prepared baking sheet.
Brush the calzones with the remaining beaten egg and cut 2 slits in the top of each to let steam escape. Sprinkle the calzones with the remaining 2 teaspoons parmesan, then bake until golden brown and cooked through, 18 to 20 minutes. Serve with marinara sauce, the salami and giardiniera.
Photograph by Christopher Testani
Courtesy of Food Network Magazine