Preheat your air fryer to 375°F and preheat your oven to 400°F for the biscuits.
In a small mixing bowl, combine the whole wheat flour, baking powder, and Greek yogurt, stirring until a soft dough forms.
Place the dough on a parchment-lined baking sheet, shape into a round biscuit, and bake for 10-12 minutes until golden and fluffy.
While the biscuit bakes, place the chicken breast in a shallow dish and coat thoroughly with the buttermilk.
In a separate small bowl, whisk together the almond flour, garlic powder, onion powder, smoked paprika, sea salt, and black pepper.
Remove the chicken from the buttermilk and dredge it in the almond flour mixture, pressing firmly to ensure an even coating.
Lightly spray the chicken on both sides with avocado oil and place it in the air fryer basket.
Air fry the chicken at 375°F for 12-15 minutes, flipping halfway through, until the exterior is golden brown and the internal temperature reaches 165°F.
Serve the hot air-fried chicken immediately alongside the warm Greek yogurt biscuit.