Preheat your air fryer to 400°F (200°C).
Slice the chicken breast into even strips or nuggets to ensure uniform cooking.
In a small bowl, soak the chicken strips in the buttermilk for at least 10 minutes.
In a separate shallow dish, whisk together the almond flour, sea salt, black pepper, garlic powder, and smoked paprika.
Remove each piece of chicken from the buttermilk, letting excess drip off, and dredge thoroughly in the almond flour mixture.
Place the coated chicken in the air fryer basket in a single layer and lightly brush or spray with avocado oil.
Air fry for 10-12 minutes, flipping halfway through, until the exterior is golden and crispy and the internal temperature reaches 165°F.
While the chicken cooks, steam the green beans until bright green and tender-crisp.
Pierce the sweet potato with a fork and microwave for 4-5 minutes or roast until soft, then slice in half.
Serve the crispy chicken immediately alongside the steamed green beans and roasted sweet potato.