The most important ingredient in this salad is the avocado. It is also important to use good quality soy sauce, rice vinegar & sesame oil.
Halve the avocados and remove the seed. Slice each half in half lengthwise, then make 2 cuts crosswise to yield 6 large chunks from each avocado half. Place pieces into a bowl and sprinkle with the salt. In another bowl, combine the vinegar and soy sauce, then whisk in the oil. Pour some dressing over the avocados, then sprinkle on some shichimi togarashi. Toss together, taste for seasoning and adjust if necessary. Scoop out onto plates and garnish with the nori by gently crumbling it in your hands.