Tuna, Bean, and Red Onion Salad

This is a great salad for a light lunch. Its also perfect to bring on a picnic. If the idea of canned tuna does not appeal to you, understand that I never intended this to be made with the bland tuna packed in water that is commonly available in the supermarket. In Italy, canned tuna is a delicacy. Packed in big chunks in extra-virgin olive oil, it is so succulent and flavorful you could eat it straight from the can — or jar, as the best is usually packaged in glass. The ultimate is called