01 -
In a large bowl, combine shredded chicken, diced avocado, Greek yogurt, and lemon juice.
02 -
Add chopped red onion, celery, and Dijon mustard. Mix well.
03 -
Season with salt and pepper to taste.
04 -
Lay out the tortillas and place a handful of mixed greens or spinach on each.
05 -
Spoon the chicken and avocado mixture onto the tortillas, spreading evenly.
06 -
Roll up the tortillas tightly, folding in the sides as you go.
07 -
Slice in half and serve immediately or wrap in foil for a portable lunch.