Step 1: Prepare the Marinade

In a bowl, mix the soy sauce, brown sugar, sesame oil, rice vinegar, grated ginger, minced garlic, black pepper, and red pepper flakes (if using). Stir well until the sugar dissolves completely.

Step 2: Cook the Ground Beef

Heat a large skillet over medium-high heat and add the vegetable oil. Once hot, add the ground beef and break it apart with a spatula. Cook until the beef is browned and fully cooked, about 5–7 minutes. Drain excess fat if necessary.

Step 3: Add the Bulgogi Sauce

Pour the prepared sauce over the cooked ground beef and stir well to coat. Let the mixture simmer for 3–4 minutes to allow the flavors to meld together. If you prefer a slightly thicker sauce, mix 1 tablespoon of cornstarch with 2 tablespoons of water and stir it into the pan.

Step 4: Garnish and Serve

Remove from heat and sprinkle with chopped green onions and toasted sesame seeds. Serve immediately over steamed rice or in lettuce wraps for a low-carb option.

Step 5: Enjoy!

Your delicious and easy ground beef bulgogi is ready to be enjoyed!