Step 1: Preheat the Oven - Start by preheating your oven to 400°F (200°C).
Step 2: Prepare the Dough - Unroll the pizza dough onto a lightly floured surface and roll it out into a rectangle, about 12 x 16 inches.
Step 3: Add the Sauce and Fillings - Spread the pizza sauce over the dough, leaving an inch border, then layer the salami, mozzarella cheese, and pepperoni.
Step 4: Roll It Up - Starting from one of the longer sides, roll the dough over the fillings, tucking in the sides as you go.
Step 5: Seal the Edges - Pinch the seams to seal the Stromboli and place it seam-side down on a baking sheet lined with parchment paper.
Step 6: Brush and Season - Brush the top with the beaten egg, then sprinkle with Italian seasoning and grated parmesan cheese.
Step 7: Slice and Bake - Make slits in the top to allow steam to escape, then bake for 20-25 minutes until golden brown.
Step 8: Garnish and Serve - Let cool, garnish with fresh parsley, and serve warm with extra pizza sauce.
