Not to be recommended if you are planning on getting up close and personal with someone, otherwise try it for an easy summer lunch. In the absence of cannellini beans I used chickpeas and I only had tinned tuna.
Add the baens and onions and toss genttly. Taste then add extra oil and vinegar to taste.
Drain the tuna and seperate into large chunks. Add to the bowl and turn gently to coat with the dressing. Top with the basil leaves anf black pepper to serve.