Cut the beef into bite-sized pieces.
Prepare the vegetables (bok choy, onion, carrot, chili, etc.).
Cut the cabbage and mushrooms into pieces that are easy to eat.
Heat cooking oil in a pan and sauté mala xiang guo sauce (mala sauce, hot pot sauce, doubanjiang, etc.) and garlic.
Add the beef and stir-fry over high heat.
Add the vegetables, mushrooms, and glass noodles, and stir-fry together.
Check the seasoning and finish with salt, pepper, and sugar.
Optionally, add Sichuan peppercorns, cilantro, or crushed peanuts to finish.