Preheat oven to 350 degrees.
In a large bowl stir chicken, buffalo sauce, ranch dressing, cream cheese, cheddar cheese and green onions together until fully combined.
Cut Hawaiian rolls in half, ensuring to keep them in tact. Place bottom half of rolls in a 9x13 baking dish then spread the chicken mixture evenly over top. Place the remaining half of the rolls on top.
Combine melted butter and ranch seasoning (if using) and brush over rolls.
Place rolls in the oven and bake for 20 minutes.
Allow the rolls to rest for at least 5 minutes before cutting into individual sliders.
