Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish or line with parchment paper for easy cleanup.

In a large mixing bowl, combine 3½ cups of shredded rotisserie chicken with ½ cup buffalo sauce and ¾ cup ranch dressing. Mix thoroughly to ensure the chicken is evenly coated in the spicy-creamy mixture.

Without separating the individual rolls, slice the Hawaiian rolls horizontally to create a top and bottom layer. This helps keep everything intact and easier to assemble.

Place the bottom half of the rolls in the baking dish. Spread the buffalo chicken mixture evenly across the bottom layer. Sprinkle 1½ cups of freshly grated cheese over the chicken. Gently place the top half of the rolls back on.

In a small bowl, mix 3 tbsp melted butter with ½ tsp garlic powder. Brush the tops of the rolls generously with the garlic butter mixture.

Cover the baking dish with aluminum foil and bake at 350°F for 15 minutes. This allows the filling to heat through and the cheese to melt.

Remove the foil and continue baking for another 5–7 minutes, or until the tops of the rolls are golden brown and slightly crispy.

Allow the sliders to rest for 5 minutes before cutting. This keeps the filling from spilling out and makes for a much cleaner presentation.