Slice the chicken breast into thin strips and pat dry with a paper towel.
In a medium bowl, whisk together the arrowroot powder, garlic powder, onion powder, sea salt, and black pepper.
Toss the chicken strips in the arrowroot mixture until evenly coated.
Heat the avocado oil in a non-stick skillet over medium-high heat or preheat an air fryer to 400°F.
Cook the chicken for 4-5 minutes per side in the skillet, or air fry for 10-12 minutes, until the exterior is golden and crispy.
While the chicken cooks, prepare the clean ranch by whisking the Greek yogurt, fresh dill, and lemon juice in a small bowl.
Warm the whole wheat tortilla in a dry pan for 30 seconds until pliable.
Lay the tortilla flat and layer with shredded romaine lettuce and diced tomatoes.
Place the crispy chicken strips on top, drizzle generously with the yogurt ranch, and roll tightly into a wrap.