Preheat your oven to 350°F.
Mix the shredded chicken, buffalo sauce, and melted butter in a large bowl until coated.
Slice the slider buns in half and place the bottom halves in a baking dish.
Spoon the chicken mixture evenly over the buns.
Drizzle ranch or blue cheese dressing on top of the chicken.
Sprinkle shredded cheese over everything.
Put the top buns on and press down gently.
Bake for 15 minutes, until the cheese melts and the tops are slightly golden.
Remove from the oven and sprinkle green onions on top if using.