Easy Waldorf Salad Recipe with Chicken and California Grapes

0 If using freshly-roasted chicken, please see notes. If using leftover roast chicken, please proceed to step 2.
1 In a large bowl, combine the mayonnaise, yogurt, mustard, lemon juice, salt and pepper. Whisk to combine. Add the chicken, California Grapes, celery, apple and walnuts and toss everything to coat. Taste the salad for seasoning and adjust with salt and pepper, as desired.
2 Arrange the lettuce leaves on a plate and spoon the Waldorf Salad overtop. Serve with gluten-free crackers.