All ingredients ready? Let's begin!
Preheat the oven to 350°F.
In a large mixing bowl, combine the garlic powder, onion powder, parsley, chives, dill, salt, and pepper.
Add the shredded chicken to the bowl and toss it in the seasoning to coat completely. Add the hot sauce, Worcestershire sauce, and 2 tablespoons of the melted butter Toss again to coat completely. Set the bowl aside.
Remove the rolls from the package, trying to keep them stuck together. Carefully slice through the center of the rolls with a serrated knife to remove the tops of the rolls in one layer. Don’t stress if the rolls do come apart. Place the bottom half of the rolls in a baking dish.
Scatter 1/2 of the mozzarella cheese over the rolls.
Spoon the chicken over the cheese in an even single layer.
Scatter the crumbled blue cheese over the chicken. Layer the rest of the mozzarella over the blue cheese.
Place the top layer of buns over the chicken and cheese.
Brush the remaining 2 tablespoons of melted butter all over the tops of the buns.
Transfer the baking dish to the oven and bake for approximately 20 minutes until the cheese has melted and the tops of the sliders are golden brown.
While the sliders are baking, prepare the cheese sauce: In a small serving bowl, stir together the blue cheese crumbles, sour cream, mayonnaise, buttermilk, lemon juice, salt, and pepper. Set the bowl aside for serving with the sliders.
Remove the baking dish from the oven. Using a spatula, lift the sliders out onto a cutting board. Slice between the rolls and serve the sliders on a platter next to one another with the blue cheese sauce on the side for dipping or spooning onto the sandwiches. Serve with celery sticks and lots of napkins.