Cut the beef into bite-sized pieces.
Slice the radish and green onion into easy-to-eat pieces.
Add sesame oil to a pot and stir-fry the beef.
When the beef is cooked, add radish and stir-fry together.
Pour water and bring to a boil.
Once the soup boils, add green onion and minced garlic.
Season with soy sauce and salt to taste.
When all the ingredients are cooked, turn off the heat and serve in a bowl.