Blend the cottage cheese, Greek yogurt, Dijon mustard, lemon juice, honey, garlic powder, salt, and black pepper until silky smooth.
Add the shredded chicken, celery, apple, grapes, pecans, and parsley to a large mixing bowl.
Pour the cottage cheese dressing over the chicken mixture.
Fold everything together until the dressing evenly coats the ingredients without crushing the apple or grapes.
Cover and refrigerate the chicken salad for at least 30 minutes so the flavors blend.
Stir once more before serving in lettuce cups, on toasted bread, or with crisp vegetables.