If utilizing tuna or chickpeas, drain them, then in a small bowl mash them with a fork (if utilizing hen, chop and add to a small bowl). Stir within the celery, scallion, mayonnaise, mustard, Parmesan, if utilizing, salt, pepper and seasoning, if utilizing. Style, and regulate seasoning as desired. Cut up the salad between two items of the bread, prime with the remaining bread and serve.
https://www.washingtonpost.com/meals/2021/08/12/deli-salad-sandwich-recipe/?utm_source=rss&utm_medium=referral&utm_campaign=wp_lifestyle | This deli-style salad sandwich recipe works with chickpeas, hen or tuna