Add chicken, grapes, celery, onion, Greek yogurt, almonds, mustard, parsley, pepper and salt into a large bowl.
Toss to combine.
Taste and add more yogurt, salt and pepper, if needed.
Enjoy right away or chill before serving.
Serve with crackers for a snack or appetizer, on bread or a wrap for a sandwich or over a bed of greens.
Place salad in an airtight container in the fridge. The salad will keep for 3-5 days.
