Soak the seaweed in cold water for 10 minutes.
Cut the soaked seaweed into bite-sized pieces.
Cut the beef into bite-sized pieces.
Heat sesame oil in a pot and stir-fry the beef.
Add the seaweed and stir-fry together.
Pour in water and bring to a boil.
Season with soup soy sauce and salt.
Simmer over medium heat for another 10 to 15 minutes.