Add chicken, grapes, apples, celery, and shallots to a large mixing bowl.

In a small mixing bowl add mayonnaise, lemon juice, parsley, chives, and Dijon mustard.

Whisk to combine.

Pour mayonnaise mixture over chicken mixture and stir to combine.

Taste and season with kosher salt and black pepper.

Store in the refrigerator and serve plain, on bread, in a wrap, or on lettuce wraps.