STEP 4/6
Put oil on the bean sprouts, stir-fry them transparently so that they don't die too much, and season them with salt.
STEP 6/6
Don't sprinkle the sauce on the rice bowl.
Place a small amount of rice, bean sprouts, steak, onion pickles, and wasabi on a spoon, and place the sauce on top as if applying chopsticks.