Serving suggestion: warm marinara sauce
Place an oven rack in the center of the oven. Preheat the oven to 450 degrees F. Sprinkle a baking sheet with cornmeal.
On a lightly floured work surface, roll out the dough into a 13-inch diameter circle, about 1/4-inch thick. Transfer the dough to a heavy baking sheet
In a medium bowl, combine the cheeses, salami, peppers, olives, and olive oil. Spoon the mixture onto one halfof the dough leaving a 1-inch border. Using a pastry brush, lightly brush the edges of the dough with the beaten egg. Fold the unfilled side of the dough over the filling and using the tines of a fork, press the edges of the dough together to seal. Drizzle with olive oil. Using a paring knife, cut a 1/2-inch wide slit in the top layer of the dough.
Bake for 20 to 25 minutes until golden brown. Cool for 5 minutes. Cut the calzone into slices and serve with warm marinara sauce, if you choose.