Cut the beef into bite-sized pieces.
Slice radish, onion, green onion, and tofu into pieces suitable for eating.
Heat oil in a pot and stir-fry the beef.
When the beef is cooked, add radish and onion and stir-fry together.
Pour in water and bring to a boil.
Once the broth is boiling, add tofu and green onion.
Season with soy sauce, minced garlic, salt, and pepper.
When all the ingredients are cooked, turn off the heat and it's ready.