1Add vodka sauce and meatballs to a small sauce pan over medium heat. Cook for 10-15 minutes or until heated through then set aside.
2Preheat your oven to 400F degrees.
3Add butter and minced garlic to a microwave safe container and microwave on high for 30 seconds - stir and do another 15 seconds. Add in parmesan cheese and parsley and stir.
4Add 2 tbsp of the garlic butter to the bottom of a 9x13 baking dish then add each Hawaiian roll to the pan.
5Use a sharp knife to cut out the center of each sweet roll then brush the top with remaining garlic butter.
6Place a meatball in the middle of each one followed by another spoonful of sauce.
7Top each one with a small slice of mozzarella and then put in the oven for 18-20 minutes or until the cheese has melted and the bread is golden-brown.
8Remove from heat and let rest for a few minutes before serving.