Soak dried wakame in water to rehydrate, then drain. In a bowl, beat the egg and mix with the cooked rice.

Roughly chop the bean sprouts.

Heat sesame oil in a frying pan over medium heat. Add the bean sprouts and wakame, and stir-fry briefly.

Add the egg-rice mixture to the pan and stir-fry until the rice becomes fluffy and separates. Add chicken stock powder, salt, and pepper, and stir-fry briefly.