Cut the beef steak into little cubes, not too thick.
Slice the spring onions into rounds.
In a pot with a little oil, toast the garlic and add the beef.
After a few minutes, add the soy sauce, the sesame paste and the pepper.
Add a ladle of vegetable broth (or water), and cook over 5 minutes over a medium flame, and keep adding ladles of broth as you cook.
A few minutes before removing from heat, at the thinly sliced onions, they should remain crunchy.
Before serving, tepid, grate a bit of fresh ginger on each portion.