Creating Chicken Salad Cucumber Roll Ups is straightforward. Follow these simple steps:

1. Prepare the Cucumbers: Wash the cucumbers thoroughly. Cut the ends off and slice them lengthwise into thin strips (about ¼ inch thick). A mandoline slicer works well for this.

2. Make the Chicken Salad: In a mixing bowl, combine the shredded chicken, Greek yogurt (or mayonnaise), Dijon mustard, red onion, celery, dill, salt, and pepper. Mix until well combined.

3. Assemble the Roll Ups: Lay a cucumber strip flat on a clean surface. Spoon a generous amount of chicken salad at one end of the cucumber.

4. Roll It Up: Starting from the end with the chicken salad, gently roll the cucumber strip up, ensuring the filling stays inside.

5. Secure the Roll: If needed, use a toothpick to hold the roll-up in place. Repeat with the remaining cucumber strips and chicken salad.

6. Chill (Optional): Place the roll-ups in the refrigerator for about 30 minutes to allow the flavors to meld and to firm up slightly.

7. Slice for Serving: Before serving, cut each roll-up into bite-sized pieces for easy handling.