Combine the soy sauce, mirin, sesame oil, garlic and crushed ginger. Mix well and set aside.
Preparation of vegetables
Slice the cabbage into thin strips
Cut the mushrooms into quarters.
Heat a little oil in a frying pan. Add the cabbage and saute for about 5 minutes, then add the spinach and mushrooms. Continue cooking for 5 minutes. Set aside
Preparing the meat
In the same pan used to cook the vegetables, add the meat and the white part of the chopped chives. Add salt and pepper to taste. Sauté until the meat is cooked through, about 10 minutes.
Preparation of the noodles
While preparing the meat, cook the noodles in a large volume of water, as recommended on the package.
Set aside, and drizzle with a little oil to prevent the noodles from sticking.
Final preparations
In the pan with the meat, add the vegetables, noodles and sauce.
Fry for about 2 to 3 minutes, until the noodles are well coated with the sauce.
Serve with a sprinkling of sesame seeds and spring onion stems.