Sometimes when I get an idea for a non-traditional combination of foods, I like to Google it to confirm someone out there has given it a whirl.I got the green light on combining tuna and pineapple for lunch today when several variations on this unexpected pairing popped up online.I ended up following this recipe quite closely, minus the cheese and lettuce and plus diced green onion. I also replaced half the mayo with plain Greek yogurt. Whats your favorite twist on tuna?