Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish or line it with foil.

Season the chicken breasts with olive oil, salt, black pepper, garlic powder, and onion powder.

Cook the chicken in a skillet over medium heat for 6 to 8 minutes per side, or until fully cooked and the internal temperature reaches 165°F (74°C). Let it rest for a few minutes, then shred it with two forks.

In a bowl, toss the shredded chicken with the buffalo wing sauce and melted butter until evenly coated.

Slice the slider buns in half horizontally and place the bottom halves in the prepared baking dish.

Spread the ranch or blue cheese dressing over the bottom buns, then top with the buffalo chicken mixture and shredded cheese.

Place the top halves of the buns over the cheese. Brush the tops with melted butter and sprinkle with sesame seeds if using.

Cover loosely with foil and bake for 10 minutes. Remove the foil and bake for 5 to 7 minutes more, until the cheese is melted and the tops are lightly golden.

Remove from the oven, sprinkle with parsley if desired, and cut into individual sliders. Serve warm.