Preheat oven to 375°F. Line a baking sheet with parchment paper. Unroll the crescent dough and separate into 8 triangles. Spread about 1 teaspoon of pizza sauce onto each triangle, leaving a small border around the edges. Place 2–3 slices of pepperoni on each triangle and sprinkle 1–2 tablespoons of mozzarella over the top. Roll each triangle from the wide end toward the tip, enclosing the filling inside. Pinch seams gently to seal and place seam-side down on the baking sheet. Mix melted butter with Italian seasoning and garlic powder, then brush over the tops. Bake for 12–15 minutes or until golden brown and cooked through. Let cool for 3–5 minutes before serving.