Preheat your oven to 425°F and line a large baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into bite-sized cubes and place them in a large bowl along with the cauliflower florets.
Sprinkle the chicken and cauliflower with almond flour, sea salt, and black pepper, tossing until everything is lightly and evenly coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 20 minutes until the chicken is cooked through and the cauliflower is tender.
While the bites roast, whisk together the melted ghee and buffalo sauce in a large mixing bowl.
In a separate small bowl, combine the Greek yogurt, lemon juice, garlic powder, onion powder, and dried dill to create a clean-eating ranch dip.
Remove the sheet pan from the oven and transfer the hot chicken and cauliflower into the bowl with the buffalo sauce, tossing to coat thoroughly.
Return the coated bites to the baking sheet and roast for an additional 5 minutes until the glaze is bubbly and slightly caramelized.
Serve the warm buffalo bites immediately with the chilled ranch dip and fresh celery stalks on the side.