Korean marinated beef served in a lettuce leaf. This is a stir-fry version, though bulgogi can also be grilled. Use sirloin tip, T-bone or flank steak; firming it up in the freezer before slicing allows it to be cut very thin. Use sesame oil in the kiwi-onion sauce--NOT toasted sesame oil, which is something different. Good served with your favorite Asian dipping sauce (I favor taylortwo's "My Korean Dipping Sauce"--Recipe #50692, made with lower-sodium soy sauce and with the garlic doubled). Marinating time of at least 2 hours not included in prep time.