Meck...here's a great Ahi Poke (not quite the traditional hawaiian way) recipe.
Sashimi grade Ahi tune cut in 1/4 inch cubes (half pound or so)
siracha (spicy red pepper sauce)
chopped scallions (green onions)
one avocado, cut into 1/4 cubes
Cut the Tuna (be delicate with the fish, dont want to handle it too much) scallions and avocado in like sizes. Add into a large bowl.
Add in soy sauce, sriracha and sesame oil to taste and to lightly coat the solid ingredients
sprinkle a little sea salt in
I usually use a water cracker or rice cracker and put the Poke on top.