Preheat the oven to 400°F (200°C).
Roll out the pizza dough on a lightly floured surface into a rectangle, about 1/4 inch thick.
In a bowl, combine the mozzarella cheese, Parmesan cheese, garlic powder, Italian seasoning, and salt.
Cut the rolled-out dough into strips, about 1 inch wide.
Place a spoonful of the cheese mixture onto one end of each strip of dough.
Fold the dough over the cheese filling and pinch the edges to seal.
Brush the tops of the stuffed breadsticks with melted butter.
Place the breadsticks on a baking sheet lined with parchment paper.
Bake in the preheated oven for 12-15 minutes, or until golden brown.
Serve warm with marinara sauce for dipping.
