Chicken Bacon Ranch Sliders

0 Prep Onions: Dice the onions and Sauté them in a small amount of oil on medium heat until soft.  Set aside. 
1 Preheat the Oven: Preheat your oven to 325°F
2 Make the Chicken Mixture: In a large bowl, combine shredded chicken, 3/4 of the cooked bacon, and half the ranch dressing.  Mix until well combined, and you want the mixture to be a little bit moist but not overly wet. 
3 Prepare the Rolls: Slice the rolls in half to create a bottom and top layer.  Lightly spray a baking dish with oil and place the bottom half of the rolls in the pan. 
4 Assemble the Sliders: Brush ranch on the bottom rolls.  Layer with half the cheese, chicken mixture, sautéed onion, and bacon...then repeat with the second half.  Spread ranch on the inside of the top layer of rolls and then place on top.
5 Add the Topping: Melt butter and mix it with the ranch seasoning.  Using a pastry brush, evenly spread it on top of the rolls. 
6 Bake: Cover with foil and bake for 20 minutes, then uncover and bake an additional 10 minutes, or until the tops are golden and the cheese is melted.