Preheat air fryer to 400°F.
Cut chicken breast into thin strips.
In a small bowl, whisk the egg white until slightly frothy.
In a separate shallow dish, combine almond flour, sea salt, garlic powder, and smoked paprika.
Dip each chicken strip into the egg white, then dredge in the seasoned almond flour until fully coated.
Lightly coat the air fryer basket with avocado oil and place chicken strips inside in a single layer.
Air fry for 10-12 minutes, flipping halfway through, until the exterior is golden and the chicken is cooked through.
Toast the whole grain waffle until warm and firm.
Plate the waffle, top with crispy chicken strips, drizzle with maple syrup, and garnish with sliced green onions.