Preheat oven to 350 degrees and line a baking sheet with parchment paper or foil.
Use your fingers to make a small hole in the center of each roll.
In a small bowl mix the garlic powder with the melted butter until well combined.
Brush the garlic butter inside the hole and all over the outside of the rolls.
Add about a tablespoon of sauce into each roll then bake for 6-8 minutes.
Place a meatball in hole of each roll.
Spoon more sauce over the top of the meatball.
Sprinkle the mozzarella cheese evenly over the top of the rolls and return to the oven for 10-15 minutes until the meatballs are hot and the cheese is melted.
Garnish with parmesan cheese and parsley then serve immediately and enjoy!
Notes
This Recipe Can be Doubled: This is a great recipe to make for super bowl party. Increase the ingredients proportionately and split it into two baking sheets before baking.
Dipping Sauce: Serve with extra marinara sauce on the side as a dipping sauce.
Pesto: Use pesto in place of the tomato sauce for pesto meatball sliders.
Fresh Mozzarella: You can also use slices of fresh mozzarella in place of the shredded cheese.