In a large skillet, melt 1 tablespoon of butter over medium heat. Add the diced green bell pepper and onion, sautéing until they are soft and fragrant, about 5 minutes. Remove from heat and set aside.
Preheat your oven to 400°F (200°C). Roll out the refrigerated pizza dough on a floured surface until it's about 1/4 inch thick. Cut the dough into rectangles, roughly 3 inches by 5 inches, to create your pizza sticks.
Lay a piece of provolone cheese on each rectangle of dough, followed by a portion of sautéed vegetables and a few slices of roast beef. Sprinkle with garlic powder and Italian seasoning. Fold the dough over to encase the filling and press the edges to seal.
Place the assembled sticks on a greased baking sheet. Melt the remaining 2 tablespoons of butter and brush it over the tops of the sticks for a shiny, golden finish. Bake in the preheated oven for 15-20 minutes or until the dough is golden brown.
Remove the pizza sticks from the oven and let them cool for a few minutes. Serve warm with your favorite dipping sauces, like marinara or ranch, and enjoy the cheesy goodness of Philly Cheese Steak Pizza Sticks!
