Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Cut the chicken breast and cauliflower into uniform, bite-sized pieces.
In a large bowl, whisk the melted ghee with half of the sea salt and black pepper.
Add the chicken and cauliflower to the bowl, tossing thoroughly until every piece is evenly coated in the ghee mixture.
Spread the chicken and cauliflower in a single layer on the prepared baking sheet, ensuring they aren't crowded so they roast rather than steam.
Bake for 20-22 minutes, flipping halfway through, until the chicken is cooked through and the cauliflower edges are golden brown.
While the bites roast, prepare the ranch dip by whisking together the Greek yogurt, dried dill, garlic powder, onion powder, and the remaining salt and pepper in a small bowl.
Remove the tray from the oven and transfer the roasted bites back into a clean bowl.
Drizzle the buffalo hot sauce over the bites and toss gently to coat.
Serve the warm buffalo bites immediately with the chilled ranch dip on the side.