- In a mixing bowl,combine yogurt and mustard.
- Mix well and season with black pepper.
- Stir in diced chicken and toss well until thoroughly coated.
- In a separated bowl,combine lettuce,cucumber,celery and carrots.
- Mix well.
- Fold a tortilla in half and in half again to make a cone that is easy to hold.
- Half-fill the tortilla pocket with salad mixture and top with chicken mixture.
- Repeat with remaining tortillas,salad and chicken.
- Serve chicken wraps at once.