In a small bowl, prepare the sauce by whisking together the soy sauce, honey, cornstarch and red pepper flakes. Set aside.
In a large skillet, heat the oil over medium-high heat.
Add the beef and cook, stirring, until no longer pink, breaking it up into crumbles as you cook, about 5 minutes.
Drain the beef. Return to the skillet. Add the garlic and the ginger to the skillet and cook, stirring, 1 minute.
Stir the sauce into the beef. Cook 2 more minutes, until heated through and the sauce thickens.
Off heat, drizzle the dish with sesame oil, sprinkle it with green onions and serve.
