In a large bowl, mix together the mayonnaise (2/3 cup), salt (1/2 teaspoon), black pepper (1/2 teaspoon), and fresh chopped parsley (2 tablespoons).
Add the shredded chicken (2 cups), halved or quartered grapes (1/2 cup), diced celery (1/2 cup), chopped walnuts (1/4 cup), and diced red onion (1/4 cup). Stir well to combine.
Serve on sandwiches with toasted bread, on lettuce wraps, or on top of a green salad.
Walnut substitution: Not a fan of walnuts? You can use slivered or sliced almonds, or chopped pecans, instead. For a nut-free version, use sunflower seeds in place of the walnuts, so you still have that awesome crunch.
For a mayo-free version, try sour cream or Greek yogurt instead of mayonnaise.
Mix it up! Fruits are great in chicken salad- try using dried apricots, chopped apples, or even strawberries in place of the grapes.
Storage: store in an airtight container in your fridge for up to 5 days.