Fresh, crisp and full of flavor — this tuna salad sandwich is a must-try. Made with water, yellow onion, mayo and sweet relish. Easy step-by-step instru…
This tuna salad sandwich relies on simple, everyday ingredients such as of tuna in water, small yellow onion, mayo or miracle whip and sweet relish. It comes together quickly and makes 4 servings, at about 358 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026