Combine chicken, cream cheese, ranch seasoning, and bacon into a skillet or saucepan over medium heat, and cook until cream cheese is melted, chicken is warmed through, and all ingredients are combined. Remove from heat and add 8 oz. shredded cheese. Stir until combined.
Place bottoms of slider rolls onto a baking sheet. Spread chicken mixture onto slider rolls and top with remaining cheese and slider roll tops. Brush rolls with melted butter, if desired.
Place in preheated oven for 8-10 minutes or until golden brown.