After my weekend of licentiousness my system needed something a little lighter. This turned out great. I used the same ahi tuna that I normally use for sushi. I crushed the macadamias by putting them in a zip top bag and smacking them with the back of a wooden spoon. They browned nicely on the tuna and gave it a buttery richness. I added sesame seeds to the dressing and it was wonderfully sweet with a subtle wasabi flavor. The cucumbers and tomatoes were both locally grown and were juicy and flavorful. This was a terrific meal - I could have eaten 5 servings. Yesterday, I probably would have. This was just about as far from a garbage plate as a meal could be - just what I wanted.