Preheat your oven to 375°F (190°C).
Roll out the pizza dough into a large rectangle on a lightly floured surface.
Spread the marinara sauce evenly over the dough, leaving a 1-inch border.
Layer mozzarella, pepperoni, and Italian sausage on top of the sauce.
Sprinkle Parmesan cheese and Italian seasoning evenly.
Carefully roll the dough into a log, tucking in the ends to seal.
Place the stromboli on a baking sheet lined with parchment paper.
Brush the top with the beaten egg wash for a golden finish.
Bake for 25-30 minutes or until golden brown and cooked through.
Let cool for 5 minutes before slicing and serving.