Preheat the oven to 350º F.
Grease a 9×13 baking dish with cooking spray.
Add the melted butter and black pepper parmesan seasoning mix to a bowl and stir together. Set aside.
Combine the shredded chicken, buffalo sauce and ranch dressing in a large bowl.
Using a large bread knife, cut through the middle of the sweet rolls. Be sure to keep allsweet rolls attached to one another.
Place the bottom of the sweet rolls in the baking dish.
Evenly spread the buffalo chicken mix onto the bottom of the sweet rolls. Then sprinkle shredded cheese over the top of the chicken mixture.
Place the top of the rolls over the cheese. Spoon the melted butter mixture on top of the rolls evenly.
Put foil over the baking dish and bake for 15-20 minutes. Once baked, remove foil and allow the sliders to bake for 2-3 additional minutes to brown the tops.
Allow the sliders to cool for 5 minutes before serving warm.