Cook the Chicken: If not using pre-cooked chicken, cook chicken breasts by boiling or pressure cooking until fully cooked, then shred into bite-sized pieces.
Prepare Ingredients: Chop the celery, slice the grapes in half (or dice apples if using), and chop the nuts if you prefer them in your salad.
Mix the Salad: In a large bowl, combine the shredded chicken, celery, grapes (or apples), and nuts.
Make the Dressing: In a separate bowl, whisk together the mayonnaise, Dijon mustard, honey (if using), salt, and pepper until smooth.
Combine: Pour the dressing over the chicken mixture and toss gently until everything is evenly coated.
Chill (Optional): For the best flavor, refrigerate the chicken salad for at least 30 minutes to allow the flavors to meld together.
Serve: Serve the salad on a bed of greens, as a sandwich, or in a wrap, and enjoy!