I know that pasta salads have had a bad rap, but I really like them. This one is delicious with fantastic lemon flavor, tuna and crisp veggies. Enjoy! (This recipe uses canned tune. I haven't tried using fresh tuna yet, but I will next time. I think maybe I'll grill it and slice it up, still pink... yum!) Derived from BBC's "Good Food" magazine (March 2007) with some variations.