Prepare the Dough: Preheat the oven to 375°F (190°C). Roll out the pizza dough on a parchment-lined baking sheet to form a rectangle.

Layer the Ingredients: Spread the pizza sauce evenly over the dough, leaving a 1-inch border around the edges. Layer salami slices, then pepperoni slices on top of the sauce. Sprinkle mozzarella cheese evenly over the meats.

Roll and Seal: Carefully roll the dough tightly, starting from one long edge, to create a log. Pinch the seam and ends to seal. Position the rolled Stromboli with the seam facing down on the baking sheet.

Add Topping: Brush the top of the Stromboli with beaten egg. Sprinkle with Italian seasoning and grated Parmesan cheese for extra flavor.

Bake: Bake in the preheated oven for 15-20 minutes, or until the crust is golden brown and crispy.

Slice and Serve: Let the Stromboli cool for a few minutes, then slice into pieces. Garnish with chopped parsley if desired, and serve with extra pizza sauce for dipping.