Start by adding Greek yogurt, mayonnaise, Dijon mustard, honey, salt, and black pepper to a mixing bowl. Whisk everything together until the mixture becomes smooth and creamy. The dressing should taste slightly sweet with a gentle tang.
Dice the cooked chicken into small bite-size pieces so it mixes evenly with the dressing. Finely chop celery and red onion to add texture and freshness. Preparing the ingredients this way ensures every bite has balanced flavor.
Add the diced chicken, celery, onion, and herbs into the bowl with the dressing. Gently fold everything together until the chicken is fully coated. Be careful not to overmix so the chicken keeps its texture.
Taste the salad and adjust seasoning if needed. You can add a little extra mustard for tang, honey for sweetness, or a squeeze of lemon juice to brighten the flavor. This step helps balance the overall taste.
Place the salad in the refrigerator for about 20–30 minutes before serving. Chilling allows the flavors to blend together and makes the salad taste even better.