In a small bowl, whisk together the Greek yogurt and lemon juice to create a tangy marinade.
Submerge the chicken breast in the yogurt mixture and let it sit for 10 minutes to tenderize.
In a separate shallow dish, combine the almond flour, arrowroot powder, garlic powder, smoked paprika, sea salt, and black pepper.
Dredge the marinated chicken in the flour mixture, pressing firmly to ensure a thick, even coating on all sides.
Lightly brush or spray the coated chicken with avocado oil and air-fry at 375°F for 12-15 minutes until the exterior is golden and the center is cooked through.
While the chicken is air-frying, toast the whole-grain waffle until it reaches a crisp texture.
In a small ramekin, stir together the maple syrup and red pepper flakes for a sweet and spicy finish.
Place the crispy chicken breast on top of the toasted waffle and drizzle the infused maple syrup over the entire dish.