Cook the Noodles – Boil the noodles according to package instructions. Drain and set aside.

Cook the Beef – In a large pan, heat vegetable oil over medium-high heat. Add ground beef and cook until browned, breaking it apart as it cooks. Drain excess fat.

Sauté Aromatics – Add garlic and ginger to the beef, cooking for about 1 minute until fragrant.

Make the Sauce – In a bowl, mix soy sauce, brown sugar, beef broth, hoisin sauce, and red pepper flakes. Pour into the pan with the beef and stir well.

Thicken the Sauce – Add the cornstarch slurry (cornstarch mixed with water) to the pan. Stir and let it simmer until the sauce thickens.

Combine with Noodles – Add the cooked noodles to the pan and toss until well coated with the sauce.

Garnish and Serve – Sprinkle chopped green onions and sesame seeds over the dish before serving.