Place a large skillet or wok over medium-high heat and brown the ground beef until no pink remains, breaking it into small crumbles.
Drain any excess fat from the pan, then stir in the minced garlic and grated ginger, cooking for 60 seconds until fragrant.
Whisk together the soy sauce, beef broth, toasted sesame oil, and sweetener in a small bowl, then pour the mixture over the beef.
Add the shredded cabbage to the skillet and toss thoroughly to coat with the sauce.
Cover and cook for 5 to 7 minutes, stirring occasionally, until the cabbage is tender-crisp.
Stir in the red pepper flakes and adjust seasoning to taste.
Garnish with sliced green onions and sesame seeds before serving warm.