I grew up eating a similar tuna salad, I have since adjusted it to be a little healthier than before. The apples make it fresh and delicious! Serve on bread of your choice with lettuce. Yum!
Stir the tuna, olive oil, mayonnaise, apple, onion, relish, and dill together in a bowl until evenly mixed. Season with salt and pepper. You can serve immediately, though is tastes much better after being refrigerated overnight.