Preheat oven to 350°F and prepare a 9x13" baking pan by greasing it or lining it with parchment paper. Set aside.
In a large mixing bowl, combine the shredded chicken, crumbled bacon, and 3/4 cup of the ranch dressing. Toss to evenly combine the mixture.
2 cups chicken, 1/2 cup crumbled bacon, 1 cup Bolthouse Ranch dressing
Slice the Hawaiian buns in half, and place the bottom half in the prepared pan. Spread the remaining 1/4 cup of ranch dressing on top of the bottom buns.
1 package Hawaiian rolls, 1 cup Bolthouse Ranch dressing
Place the chicken bacon ranch mixture on top of the buns and evenly spread it out.
Evenly top with cheese, then place the top buns back on top.
1 cup cheddar cheese
In a separate small bowl, combine the melted butter, parmesan cheese, and ranch seasoning. Lightly spread it on top of the slider buns.
Cover pan with foil and bake for 15 minutes. Remove the foil and bake for another 10-15 minutes, or until cheese has melted. If your oven runs hot and your sliders are getting too browned in the second half of baking, place the foil back on until done.
Use a chef's knife to cut, then serve while warm. Enjoy!