Preheat your air fryer to 390°F (200°C) and slice the chicken breast into even strips.
In a small bowl, soak the chicken strips in buttermilk for at least 15 minutes to tenderize.
In a separate shallow dish, whisk together the panko, flour, garlic powder, onion powder, paprika, salt, and pepper.
Dredge each piece of chicken in the panko mixture, pressing firmly to ensure a thick, even coating.
Lightly spray the air fryer basket with avocado oil and arrange the chicken in a single layer.
Air fry for 10-12 minutes, flipping halfway through and spraying again, until the coating is golden and the chicken is cooked through.
While the chicken cooks, steam the green beans and roast or microwave the sweet potato until tender.
Serve the crispy chicken immediately alongside the warm vegetables for a balanced, protein-packed feast.