Creating Gordon Ramsay’s Chicken Salad Sandwich is straightforward, and following these steps will help you achieve the best results:

1. Prepare Ingredients: Start by shredding or dicing the cooked chicken and preparing all the vegetables you will be using.

2. Mix Dressing: In a mixing bowl, combine mayonnaise, Greek yogurt (if using), Dijon mustard, and lemon juice. Mix until smooth.

3. Add Chicken: Fold the cooked chicken into the dressing mixture until well coated.

4. Incorporate Vegetables: Add the chopped celery, red onion, and grapes (if using) to the chicken mixture. Fold gently to keep the veggies intact.

5. Season: Season the mixture with salt and pepper to taste. Adjust the dressing if needed or personalize it to suit your flavor preference.

6. Toast Bread: Lightly toast the slices of bread in a pan or toaster until golden brown for added texture.

7. Assemble Sandwich: Layer a slice of toasted bread with shredded lettuce and spoon the chicken salad over it. Add another slice on top.

8. Garnish and Serve: If desired, sprinkle fresh herbs on top before cutting the sandwich into halves or quarters for easier eating.