Chicken Salad

• 1 whole rotisserie chicken, deboned
• 2-3 stalks celery
• 1 medium red onion
• ¾ cup mayonnaise
• ¼ cup dill relish
• 1 tbsp whole grain mustard
• 1 tbsp old bay
• 1 tsp dried dill weed
• 1 tsp celery seed
• ½ tsp granulated garlic
• ½ tsp granulated onion
• kosher salt and fresh ground pepper, to taste