Preheat your air fryer to 400°F and lightly grease a waffle iron.
Slice the chicken breast into strips and coat them with avocado oil.
In a small bowl, whisk together the garlic powder, onion powder, smoked paprika, sea salt, and black pepper.
Toss the chicken strips in the spice blend until evenly coated.
Place the chicken in the air fryer basket and cook for 10-12 minutes, flipping halfway through, until golden and cooked through.
While the chicken is cooking, prepare the waffle batter by whisking the oat flour, baking powder, egg whites, Greek yogurt, and water in a bowl until smooth.
Pour the batter into the preheated waffle iron and cook until the exterior is crisp and light brown.
Place the warm waffle on a plate and top with the air-fried chicken strips.
Finish with a light drizzle of pure maple syrup and serve immediately.