Autumn Apple Walnut Chicken Salad Sandwich

Instructions

1. 1
   In a medium bowl, combine shredded chicken, diced apple, and chopped walnuts.
2. 2
   In a small bowl, whisk together mayonnaise and apple cider vinegar.
3. 3
   Fold the dressing into the chicken mixture and season with salt and pepper.
4. 4
   Lightly toast the bread slices until golden brown.
5. 5
   Layer mixed greens on two bread slices, top with chicken salad mixture, and cover with remaining bread slices.
6. 6
   Cut diagonally and serve immediately.