Begin by washing and dicing the celery into small pieces for that satisfying crunch. Mince the red onion finely to enhance its flavor, and if you’re using fresh herbs like parsley and dill, chop them as well.

Open the cans of tuna and carefully drain most of the liquid, but remember not to rinse it; a little moisture helps maintain the salad's flavor. Use a fork to flake the tuna into smaller pieces as you add it to a mixing bowl.

In a large bowl, combine the flaked tuna, creamy Greek yogurt, diced celery, minced onion, and Dijon mustard. Sprinkle in the chopped fresh parsley and dill, along with a pinch of sea salt and black pepper.

Once everything is mixed together, taste your Mediterranean Tuna Salad and adjust seasoning as preferred.

Serve the salad immediately, or refrigerate in an airtight container for up to 3-4 days.