In a large mixing bowl, add the shredded chicken, diced dill pickles, and minced red onion. Gently fold together until well mixed.

In a separate medium bowl, whisk together the Greek yogurt, mayo, sweet pickle relish, and Dijon mustard. Add dried chives, dried dill, and season with salt and pepper. Blend until creamy and smooth.

Pour the dressing over the chicken mixture and fold together until everything is well-coated.

Taste and adjust seasoning if necessary with more salt, pepper, or a splash of lemon juice.

Transfer to a serving bowl or plate. Serve on croissants, atop greens, or on crackers.