Slice tuna and salmon into 1/4’’ cubes (or 1/2’’ if desired). Place fish in large bowl. Add soy sauce, red pepper flakes, onion, and oil into the fish and and gently stir.
Cook the rice, or prepare the greens.
Serve the poke over jasmine rice or a bed of greens.
To garnish, add avocado, pickled ginger, green onion, and seaweed.