Tear the beef along the grain into strips and prepare.
Prepare the bracken, green onion, mung bean sprouts, and sweet potato noodles.
Heat sesame oil in a pot and stir-fry the beef.
Add the bracken, mung bean sprouts, and green onion, and stir-fry together.
Stir in red pepper powder and fry until it gains a red color.
Pour in water and beef broth, then bring to a boil.
Add sweet potato noodles and simmer over medium heat.
Season with soy sauce, salt, and black pepper to taste.