There is no such thing as an exact recipe for Yakisoba because the ingredients can vary from one cook to another. But the one thing that gives the unique taste of Yakisoba is the Japanese soy sauce, so make sure you add it!Here is MY FAVORITE example of a classic Yakisoba Recipe:
You can't make a classic Yakisoba without the special sauce, and although you can buy them pre-made, we are of course making a WAY MORE delicious sauce by mixing the soy sauce, oyster sauce, Worcestershire sauce, and sugar. Now set that aside.
How long should you boil yakisoba noodles?
Open the packs of Yakisoba noodles. Pour boiling water onto the noodles and loosen them with a chopstick. I'm talking about fresh noodles here as you only need to heat those in about 1 or 2 minutes in boiling water. If you're using dried noodles, cook them in a pan for 5 to 7 minutes, it's usually stated on the package. Drain the yakisoba and set them aside.
How to stir-fry yakisoba
Saute the beef slices in a wok until they turn brownish. Set those aside.
Then, start stir-frying the mushrooms for about two minutes. You'll want to remove the beef slices from the wok so the mushrooms and vegetables get a better chance to cook on their own.
After the mushrooms, add in your other vegetables and keep stirring for another two minutes.
Add in the ingredients you prepared earlier, so that's the sauteed beef, the noodles, and the Yakisoba sauce.
Continue to stir fry until they're all mixed evenly and cooked thoroughly.
How to serve yakisoba noodles
Now, your Yakisoba is ready to serve. You can just serve the stir-fried mixture in a bowl and eat them with chopsticks, or even on a plate and eat the dish with your fork like with any pasta dish.