Cook the Mie noodles according to the packet instructions, drain and leave to drain.
Finely slice the onion, finely chop the garlic and ginger. Wash the cauliflower and broccoli and cut into thin florets. Cut the peppers into thin strips and slice the carrot(s).
Preheat the wok, fry the fillet of beef in oil with a little salt and pepper, then remove from the pan and set aside. Then briefly fry the garlic and ginger in the pan, deglaze with mirin, add the vegetables and fry again.
Season everything with vegetable stock, soy sauce and hoisin sauce. Add the noodles and fillet - allow to warm briefly ....
... and enjoy!