Prepare all the needed ingredients needed for this recipe.
Marinate the beef sirloin with garlic powder, sugar soy sauce and sesame oil then mix it well.
Soak the shitake mushroom and black mushroom into the water.
Beat some eggs and cook.
Squeeze some mushrooms to remove excess water.
Cut off mushroom stems and slice it into strips.
Roll the cooked egg then slice it.
Cook the Dangmyun noodles and boil it for 7 minutes.
After that rinse and drain it then put some sesame oil over the noodles then mix it well.
After doing that mix the soy sauce, sugar and oyster sauce then mix it well.
Prepare pan for stir frying then stir fry the marinated beef
Add the mushrooms, carrots and bell pepper.
Add some white onion and spring onions, mix it well then add spinach
Add sesame oil and pour out the soy sauce mixture
Dash some black pepper to it then then add the noodles .
Toss and mix it well and lastly sprinkle some sesame seeds.
Serve and Enjoy.