Creating Classic Chicken Salad is straightforward when you follow these simple steps:

1. Cook the Chicken: If not using pre-cooked chicken, boil or grill the chicken until fully cooked. Let it cool, then dice into small pieces.
2. Prepare the Vegetables: Chop the celery and red onion into fine pieces. If using grapes and nuts, prepare them as well.
3. Make the Dressing: In a large bowl, combine mayonnaise, Greek yogurt (if using), Dijon mustard, lemon juice, salt, and pepper. Mix until smooth.
4. Combine Ingredients: Add the diced chicken, chopped celery, red onion, and any optional ingredients like grapes or nuts into the dressing. Stir until everything is well coated.
5. Chill: Cover the bowl with plastic wrap and refrigerate for at least 30 minutes to allow the flavors to meld.
6. Serve: When ready to serve, spoon the chicken salad onto lettuce leaves or in a sandwich. Enjoy it fresh!

These steps will guide you in creating this incredible dish effortlessly, ensuring that every bite is full of flavor.