In a large skillet, brown the ground beef over medium heat until fully cooked; drain excess fat.
Stir in brown sugar, soy sauce, sesame oil, crushed red pepper flakes, ground ginger, and minced garlic.
Simmer for 2–3 minutes, allowing the flavors to combine.
Serve the beef over cooked white rice.
Garnish with sliced green onions and sesame seeds before serving.