Cook chicken breast by boiling, baking, or using rotisserie chicken. Let it cool, then dice or shred into bite-sized pieces.
In a large bowl, whisk together mayonnaise, Dijon mustard, lemon juice, honey, salt, and pepper until smooth.
Add the chicken, celery, grapes, red onion, and nuts into the bowl with the dressing. Gently fold everything together until well coated.
Cover the bowl and refrigerate for at least 30 minutes to allow the flavors to blend.
Enjoy the Time on Broadway chicken salad recipe on a bed of lettuce, as a sandwich filling, or with crackers.