nori • sushi rice • sushi-grade tuna, cut into1/4 by 1/2 by 3-inch strips • sushi-grade salmon, cut into1/4 by 1/2 by 3-inch strips • hot house cucumber, julienne • carrot, peeled and julienne • avocado, thinly sliced • short-grain sushi rice • water • rice vinegar • sugar • salt