Preheat your oven to 450°F, line a baking pan with parchment paper and sprinkle with flour.
Remove the dough from the fridge and dust both sides with flour. Shape the dough into a 12 x 10" rectangle and place it on the prepared pan.
Spread the cooled pizza sauce over the top, leaving about an inch around the edges. Top with half of the shredded cheese, sliced pepperoni, sliced salami, and then the rest of the shredded cheese.
Brush the edges with beaten egg and roll into a tight log. If the dough is very soft and difficult to roll up, you can refrigerate the whole thing for about 15 minutes, which will firm the dough back up and make it easier to work with.
Brush the top with beaten egg and use a sharp knife to cut diagonal slits, about 1-2 inches apart.
Sprinkle the top with parmesan cheese and chopped parsley, if desired. Bake for 15-20 minutes until the crust is golden brown. Slice and serve with more sauce for dipping.