
In a wide pan over medium heat, heat vegetable oil. Add garlic and ginger and cook until aromatic.
Add ground beef and cook, breaking apart with the back of a spoon, for about 3 to 5 minutes or until lightly browned. Drain excess fat.
In a bowl, combine soy sauce, sugar, sesame oil, and red pepper flakes. Stir until sugar is dissolved. Add to the pan.
Continue to simmer until beef is cooked through.
Add green onions and cook, stirring to distribute, for about 1 minute.
Serve over steamed rice and garnish with green onions and toasted sesame seeds. Serve hot.