Whisk together the soy sauce, sweetener, minced ginger, garlic, and red pepper flakes in a small bowl; set aside.
Place a large skillet or wok over medium-high heat and add the ground beef.
Cook the beef, breaking it into crumbles, until fully browned and no longer pink.
Drain the excess grease from the pan, leaving about 1 tablespoon of fat for sautéing.
Add the shredded cabbage to the skillet and sauté for 5 to 7 minutes until the cabbage softened but still retains a slight crunch.
Pour the prepared sauce over the beef and cabbage mixture.
Toss frequently for 2 to 3 minutes until the sauce is well incorporated and the mixture is heated through.
Remove from heat, drizzle with sesame oil, and garnish with sliced green onions and sesame seeds.