In a small bowl, whisk together 2 tablespoons of brown sugar, ¼ cup of reduced-sodium soy sauce, 1 tablespoon of sesame oil, 1 teaspoon of crushed red pepper flakes, and 1 teaspoon of ground ginger.

Place a large cast-iron skillet over medium-high heat and add 1 tablespoon of vegetable oil. Allow the oil to heat until shimmering.

Add 4 cloves of minced garlic to the hot skillet and cook for about 1 minute, stirring frequently, until the garlic becomes fragrant and golden.

Incorporate 1 pound of ground beef into the skillet, breaking it apart with a spatula. Cook for about 3-5 minutes until browned and cooked through.

Once the beef is cooked, drain any excess fat from the skillet. Stir in the prepared sauce and ¼ cup of sliced green onions, then allow the mixture to simmer for an additional 2 minutes.

Remove the skillet from heat and spoon the savory beef mixture over a bowl of steamed rice. Sprinkle sesame seeds and garnish with extra green onions before serving.