Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Cut the chicken breast and cauliflower into uniform, bite-sized pieces to ensure even roasting.
Place the chicken and cauliflower on the baking sheet, then season evenly with garlic powder, sea salt, and black pepper.
Roast for 20 to 25 minutes, or until the cauliflower is tender and the chicken is fully cooked through.
In a small bowl, whisk together the buffalo sauce and melted ghee until the mixture is smooth and emulsified.
In a separate small bowl, combine the Greek yogurt, dried dill, and lemon juice to create a clean-eating ranch-style dip.
Transfer the roasted chicken and cauliflower to a large mixing bowl and toss thoroughly with the buffalo sauce mixture until well coated.
Serve the buffalo bites immediately with sliced celery and fresh avocado on the side for a balanced, high-protein meal.