Preheat your oven to 375°F (190°C).
In a medium mixing bowl, combine the shredded cooked chicken breast, Greek yogurt, softened Neufchâtel cheese, and buffalo sauce.
Stir in the garlic powder, onion powder, sea salt, and black pepper until the mixture is well combined and creamy.
Transfer the mixture into a small oven-safe ramekin or baking dish, spreading it into an even layer.
Sprinkle the shredded cheddar cheese evenly over the top of the chicken mixture.
Bake for 15-20 minutes, or until the dip is heated through and the cheese on top is melted and slightly golden.
While the dip bakes, slice the celery and carrots into sticks for dipping.
Remove the dish from the oven and let it sit for 2 minutes before serving hot with the fresh vegetable sticks.