Step 1: Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish.
Step 2: In a medium bowl, combine the shredded chicken with the buffalo sauce. If desired, mix in the ranch or blue cheese dressing at this stage. Stir until the chicken is thoroughly coated.
Step 3: Carefully slice the entire slab of slider buns in half horizontally, keeping the top and bottom halves intact. Place the bottom half of the buns in the prepared baking dish.
Step 4: Arrange half of your cheese slices over the bottom buns.
Step 5: Spread the buffalo chicken mixture evenly over the cheese-covered bottom buns.
Step 6: Top the chicken mixture with the remaining cheese slices.
Step 7: Place the top half of the slider buns over the cheese layer.
Step 8: In a small bowl, whisk together the melted butter and garlic powder. Brush this garlic butter mixture generously over the tops of the slider buns.
Step 9: Cover the baking dish tightly with aluminum foil. Bake for 15 minutes.
Step 10: Remove the foil and bake for an additional 5-10 minutes, or until the tops of the buns are golden brown and the cheese is bubbly and melted.
Step 11: Carefully remove from the oven. Let the sliders cool for a few minutes before slicing them apart. Garnish with fresh chopped parsley if desired. Serve warm.