Season the chicken breast with sea salt and black pepper.
Heat olive oil in a skillet over medium-high heat and sear the chicken until golden and cooked through, about 6 minutes per side.
Remove chicken from heat, let it rest for a few minutes, then dice or shred it into bite-sized pieces.
In a small bowl, toss the cooked chicken with the buffalo sauce until evenly coated.
In a separate small ramekin, whisk together the Greek yogurt, dried dill, and garlic powder to create a clean ranch dressing.
Lay the whole wheat tortilla flat and spread the yogurt ranch across the center.
Layer the romaine lettuce, shredded carrots, diced celery, and sliced avocado onto the tortilla.
Top with the buffalo chicken, then fold in the sides and roll the tortilla tightly into a wrap.
Slice diagonally and serve immediately.