Wash hijiki seaweed thoroughly, blanch it, and drain the water.
Blanch the tofu briefly in boiling water, remove excess moisture, and mash it.
Julienne the carrot, finely chop the green onion.
In a bowl, combine hijiki, tofu, carrot, and green onion.
Add soy sauce, sesame oil, minced garlic, and sesame seeds. Mix well.
Transfer to a plate and serve.