In a large skillet, heat the sesame oil over medium heat. Add the minced garlic and ginger, sautéing for about 1 minute until fragrant.

Add the ground beef to the skillet, breaking it apart with a spatula. Cook until browned and fully cooked, about 5-7 minutes. Drain excess fat if necessary.

In a small bowl, mix together the soy sauce, brown sugar, rice vinegar, and red pepper flakes. Pour this sauce over the cooked beef, stirring to combine. Let it simmer for about 2-3 minutes to thicken slightly.

Serve the beef mixture over a bed of cooked white rice. Top with steamed broccoli, sliced green onions, and a sprinkle of sesame seeds.