Preheat your oven to 350°F (175°C).
Prepare a baking dish by lightly greasing it.
Cut the dinner rolls in half and align them in the baking dish.
Layer shredded chicken evenly on the bottom half of the rolls.
Pour marinara sauce over the chicken.
Sprinkle both mozzarella and Parmesan cheese on top of the sauce.
Replace the top halves of the rolls.
Brush melted butter over the top of the rolls and sprinkle with garlic powder.
Cover the dish with foil and bake for 15 minutes.
Remove the foil and continue baking for another 10-15 minutes, or until tops are golden.
Remove from oven, garnish with parsley, and serve warm.