01 - Cook noodles according to package instructions. Drain, rinse briefly with cold water, and set aside.
02 - Whisk together soy sauce, oyster sauce, hoisin sauce, brown sugar, sesame oil, red pepper flakes, and water in a small bowl. Set aside.
03 - Heat a large skillet or wok over medium-high heat. Add ground beef and cook, breaking it apart, until browned and cooked through, approximately 5 to 6 minutes. Drain excess fat if necessary.
04 - Add minced garlic and ginger to the skillet. Sauté for 1 minute until fragrant.
05 - Add carrot, bell pepper, and cabbage to the skillet. Stir-fry for 3 to 4 minutes until vegetables begin to soften.
06 - Pour in the prepared sauce and stir well. Simmer for another 2 minutes to allow flavors to meld.
07 - Add cooked noodles to the skillet and toss everything together until noodles are evenly coated and heated through.
08 - Remove from heat. Garnish with sesame seeds and fresh cilantro or additional green onions if desired. Serve immediately.