Preheat Oven: Preheat your oven to 350°F (175°C). Line a baking dish with parchment paper or lightly grease it.
Prepare the Filling: In a medium mixing bowl, combine the shredded chicken, softened cream cheese, ranch dressing mix, cheddar cheese, and crumbled bacon. Mix well until combined.
Assemble the Sliders:
Slice the slider buns in half horizontally and place the bottom halves in the prepared baking dish.
Evenly spread the chicken mixture over the bottom buns. Cover with the top halves of the buns.
Add Butter Topping: In a small bowl, mix the melted butter with parsley. Brush the tops of the slider buns with the butter mixture.
Bake: Cover the baking dish with aluminum foil and bake for 15 minutes. Remove the foil and bake for an additional 5 minutes, or until the tops are golden brown and the cheese is melted.