Cut the chicken breast into small, bite-sized cubes.
In a medium bowl, toss the chicken pieces with almond flour, garlic powder, smoked paprika, sea salt, and black pepper until evenly coated.
Lightly coat the air fryer basket with avocado oil spray and place the chicken inside in a single layer.
Air fry at 400°F for 10-12 minutes, shaking the basket halfway through, until the chicken is golden and crispy.
While the chicken cooks, whisk together the Greek yogurt, dried dill, and lemon juice in a small bowl to create the healthy ranch dressing.
Once the chicken is finished, transfer it to a clean bowl and toss with the buffalo sauce until well coated.
Warm the whole wheat tortilla in a dry pan for 30 seconds per side until pliable.
Spread the Greek yogurt ranch onto the center of the tortilla, then layer on the shredded romaine lettuce, diced red onion, and the crispy buffalo chicken.
Fold in the sides of the tortilla and roll tightly to serve.