Dice the chicken breast into small, bite-sized pieces.
Heat avocado oil in a non-stick skillet over medium-high heat.
Add chicken to the skillet and sauté until golden brown and cooked through, about 6-8 minutes.
While chicken cooks, whisk together the Greek yogurt, garlic powder, onion powder, dill, salt, and pepper in a small bowl to make the clean ranch dressing.
Once the chicken is done, remove from heat and toss thoroughly with the buffalo sauce.
Prepare the lettuce wraps by laying the butter lettuce leaves flat on a plate.
Divide the buffalo chicken evenly among the lettuce leaves.
Top each wrap with diced celery, shredded carrots, and avocado slices.
Drizzle the prepared Greek yogurt ranch over the wraps and garnish with sliced green onions.