In a small bowl, combine soy sauce, brown sugar, rice vinegar, mirin, sesame oil, and red pepper flakes. Heat in the microwave for 15-20 seconds and mix well until sugar dissolves. Set aside.
¼ cup soy sauce, 3 tablespoon brown sugar, 2 teaspoon rice vinegar, 1 tablespoon mirin, 2 teaspoon sesame oil, ½ teaspoon red pepper flakes
In a large skillet, heat the neutral oil over medium-high heat. Add the ground beef and cook, breaking it up with a spatula, until browned and mostly cooked through, about 2-3 minutes.
1 tablespoon neutral oil, 1 pound ground beef
Add the minced garlic, ginger, and diced onion then cook for 2-3 minutes, stirring frequently, until fragrant and the onions soften.
3 cloves garlic, 2 teaspoon minced ginger, ½ yellow onion
Pour the sauce into the skillet and stir to coat the beef evenly. Reduce heat to medium and let it simmer for 1-2 minutes until slightly thickened and glossy. Add the chopped green onions and salt then give it one final stir to combine everything together.
2 green onions, ¼ teaspoon salt
Serve the ground beef over warm rice, cooked vegetables of choice, and kimchi. Garnish with sesame seeds and any additional chopped green onions.
1 teaspoon sesame seeds, cooked white or brown rice, cooked veggies of choice, Kimchi