Season the chicken breast evenly with sea salt and black pepper.
Heat the avocado oil in a medium skillet over medium-high heat until shimmering.
Place the chicken in the skillet and sear for 5 to 6 minutes per side until the exterior is golden and the internal temperature reaches 165 degrees Fahrenheit.
Remove the chicken from the pan, let it rest for 2 minutes, then slice into thin strips.
In a small bowl, toss the chicken strips with the buffalo sauce until well coated.
In another small bowl, whisk together the Greek yogurt, dried dill, and garlic powder to create a clean ranch dressing.
Warm the tortilla slightly in the skillet or microwave to make it pliable.
Layer the shredded romaine, carrots, and celery in the center of the tortilla.
Top the vegetables with the buffalo chicken strips and drizzle the prepared yogurt ranch over the top.
Fold in the sides of the tortilla and roll tightly to secure the wrap before serving.