This is from About.com Italian Cuisine from Kyle Phillips. It's a tasty mayo-free tuna sammich. He says, "You might not think of a tuna sandwich as being particularly Italian. However, most Italians, especially those with more demanding jobs, eat out at least once a day and a full meal simply won't work if one has to then head back to the office and be productive. This is the sort of thing you might find in a trendy downtown eatery."
If you are going to make a white bean & tuna salad (which, if you've never had it, might not sound good, but is) with canned goods, this is a good recipe. This is from a book called _Culinary Journey to the Mediterranean. You can serve this with pita bread or pita chips, and/or on a bed of arugula or watercress.