Chopped apple makes a crisp and slightly tart substitute for the grapes, adding a nice crunch. You can also swap in dried cranberries or dried cherries for a hint of sweetness and chewiness.
Make Ahead Tip: Store the prepared chicken salad in an airtight container in the refrigerator for up to 3–4 days, as long as it’s made with freshly cooked chicken. This makes it a great option for meal prep or quick lunches throughout the week.