To make the chicken- preheat your oven to 450 degrees. Line a baking sheet with foil and lightly brush one side of the chicken breasts with melted butter. Sprinkle the chicken with the garlic powder, onion powder, paprika, salt, and pepper. Turn the chicken over, brush lightly with butter and then sprinkle on the spices again. Bake for 20-25 minutes until the chicken is cooked through and has reached an internal temperature of 165 degrees. Let the chicken sit for a few minutes and then shred.
Place the shredded chicken (should be about 4 cups) in a large bowl. Add the cream cheese, sour cream, ranch, buffalo sauce, garlic powder, 1 CUP of the mozzarella cheese, and the sliced green onions. Make sure everything is well combined and that there are no large chunks of cream cheese.
Preheat your oven to 375 degrees and spray a 9x13” baking dish with cooking spray. Spress the chicken mixture into the baking dish and top with the remaining mozzarella cheese.
Bake in the oven for about 20 minutes until it’s bubbly and hot and the cheese has melted.
Garnish with more sliced green onions and crumbled blue cheese (Optional). Enjoy while warm.