Preheat your air fryer to 400°F to ensure a hot start for the vegetables.
Slice the sweet potato into thin wedges and toss them in a bowl with half of the olive oil, a pinch of the sea salt, and a pinch of black pepper.
Place the sweet potato wedges in the air fryer basket and cook for 10 minutes, shaking the basket halfway through.
While the potatoes cook, soak the chicken breast in the buttermilk for 10 minutes to tenderize the meat and ensure a juicy interior.
In a shallow dish, whisk together the breadcrumbs, garlic powder, onion powder, and paprika to create the seasoning blend.
Remove the chicken from the buttermilk, letting any excess drip off, and press it firmly into the breadcrumb mixture until fully coated.
Lightly spray the coated chicken with oil and add it to the air fryer along with the broccoli florets tossed in the remaining olive oil.
Reduce the air fryer temperature to 375°F and cook for 12-15 minutes, flipping the chicken halfway, until the coating is golden and the chicken is cooked through.