I spent years hunting for the elusive ingredient in the tuna salad my grandma used to pick up from her local deli only to find it was right in front of me the whole time. This deli style tuna salad has chopped egg, mayo, mustard, carrots, onions, and celery in it — but can be made with any of your fave tuna fillings! tuna salad recipe, tuna salad sandwich, tuna salad recipe easy, tuna salad recipe with egg, deli tuna salad recipe, deli tuna recipe