Seaweed soup without garlic for when you're too tired to mince it, though garlic is recommended.
Soak seaweed in cold water.
Cut beef into bite-sized pieces.
Add sesame oil to a pot and stir-fry the beef.
Add the soaked seaweed and stir-fry together.
Add water and minced garlic, then bring to a boil.
Season with soy sauce for soup.
When it boils, skim off any foam and simmer on low heat for 10-15 more minutes.