Sashimi Salad

Inspired by a great salad I had at Nobu in London, I made the dressing for this dish a lot more spicy - not very Japanese, but delicious all the same.

Trevally, kingfish, small yellowtail, bluenose mackerel, tommy ruff and swordfish can all be substituted for the tuna, but they must be caught and killed appropriately - that is, sashimi-grade (the flesh will then taste sweet as opposed to slightly bitter). I find this dressing also makes a great dipping sauce for sushi and, for a ref