How to Make It
In a small bowl, combine yogurt, Dijon, oil, salt, and pepper. Set aside.
In a medium bowl, combine tuna, celery, and chives. Add yogurt mixture; mix until well-combined. Cover and refrigerate until ready to use.
If your celery stalk includes the leaves, don’t toss them! Chopped up or left as-is, they make a delicious addition to this healthy tuna salad.