Make the dressing: In a medium sized bowl, whisk together the mayonnaise (or yogurt), lemon juice, salt and pepper. Add the apple, celery, grapes, and walnuts: Stir the apple, celery, grapes, and walnuts into the bowl with the dressing.
Serve: Spoon salad onto a bed of fresh lettuce and serve. Did you love the recipe? Leave us a rating and review!
