Steps
1. In a pot, heat the chili oil over medium heat.
2. Add the sliced onion, minced garlic, and grated ginger. Sauté until fragrant, about 2-3 minutes.
3. Add the beef balls to the pot and cook until browned.
4. Pour in the broth and bring to a simmer.
5. Add the noodles and cook according to package instructions.
6. In the last 2 minutes of cooking, add the shredded cabbage and sliced mushrooms.
7. Season with salt and pepper to taste.
8. Serve hot, garnished with chopped green onions.