Cook pasta according to package instructions. Cook chicken breast.
In a large bowl combine the cooked pasta, diced celery, bell peppers, carrots, red onions, pickles and cooked chicken.
In a small bowl or jar whisk together yogurt, mayonnaise, dijon mustard, vinegar, dill, honey, salt, pepper and mustard powder until smooth.
Pour the dressing over the salad and toss to combine.
