Take a medium-sized bowl and thoroughly blend the cubed chicken, mayonnaise, and Buffalo sauce until the chicken is uniformly coated.
Place a burrito tortilla flat on a clean surface.
Arrange the sliced celery, radish, green onion, and shredded broccoli down the center line of the tortilla.
Top the vegetable layer with half of the prepared Buffalo chicken mixture.
Fold the sides of the tortilla inward, tuck the bottom edge up, and roll it tightly forward until completely wrapped.
Replicate the process with the remaining tortilla and ingredients.
Cut in half if you prefer, and enjoy immediately!