Another wonderful deli salad from Junior's of Brooklyn, New York. And, as I mentioned before, if you have a weakness for cheesecake, you have to try Junior's (it's the only thing I've ever ordered on-line and had shipped)
Place the tuna in a colander and drain well. Transfer the tuna to a medium-sized bowl and break it up with your fingers into flakes (please, use your fingers, not a knife, to finely shred the tuna. This gently flakes the tuna, instead of crushing it.) Stir in the celery.
Mix all the ingredients for the dressing in a small bowl. Spoon the dressing on top of the tuna and celery mixture. Gently stir in the dressing until all of the salad ingredients are well coated. Use in sandwiches or serve as a salad on crisp lettuce leaves.