Preheat your oven to 425°F and line a large baking sheet with parchment paper for easy cleanup.
Place the cauliflower florets on the sheet, drizzle with avocado oil, and season with half of the sea salt and black pepper.
Roast the cauliflower for 20-25 minutes, tossing halfway through, until the edges are golden and crispy.
While cauliflower roasts, season the chicken breast with garlic powder and the remaining salt and pepper.
Grill or pan-sear the chicken over medium-high heat for 6-7 minutes per side until the internal temperature reaches 165°F.
In a small saucepan or microwave-safe dish, gently melt the ghee and whisk in the buffalo hot sauce until emulsified.
Prepare the dip by mixing the Greek yogurt, blue cheese crumbles, lemon juice, and dried parsley in a small bowl.
Transfer the roasted cauliflower to a mixing bowl, pour the buffalo sauce over it, and toss gently to coat every piece.
Slice the chicken into strips and serve immediately alongside the buffalo cauliflower with the tangy blue cheese dip.