Preheat your oven to 425°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Cut the chicken breast and cauliflower into uniform, bite-sized pieces to ensure they cook evenly.
In a large mixing bowl, whisk together the melted ghee and buffalo hot sauce until fully emulsified.
Add the chicken and cauliflower to the bowl, tossing thoroughly until every piece is well-coated in the buffalo mixture.
Spread the mixture onto the prepared baking sheet in a single layer, ensuring pieces are not overcrowded.
Roast for 20 to 25 minutes, flipping halfway through, until the chicken is cooked through and the cauliflower edges are golden and crispy.
While the bites roast, combine the Greek yogurt, garlic powder, onion powder, dried dill, sea salt, and black pepper in a small bowl to make the ranch dip.
Serve the warm buffalo bites immediately with the chilled high-protein ranch dip on the side.