Jap-chae (잡채) - Stir-fried noodles

A great dish for Westerners, this noodle dish is a little sweet, a little savory.  This recipe makes a ton, so put it in some Tupperware and eat it all week.

Ingredients: (7-8 servings)
300g sweet potato noodles (당면)
250g beef butt
100-200g baby spinach
2/3 carrot
1 onion
6 shiitake mushrooms
100g wood ear mushrooms (목이버섯)
dash olive oil
pinch of salt and pepper

Beef Spices:
2 spoons soy sauce
1 spoon each sugar, cheong ju (청주)
1/2 spoon minced garlic
1 small spoon sesame oil
pinch of pepper

Spinach Spices:
1 small spoon each: salt, sesame oil
1/2 small spoon sugar

Mushroom Spices:
1 spoon soy sauce
1 small spoon each: sugar, chopped garlic, sesame oil

Noodle Spices:
5 spoons soy sauce
2 spoons sugar
1/2 spoon each: sesame oil, sesame seeds
pinch of pepper

For Tossing:
3 spoons each: soy sauce, sesame oil
2 spoons each: sugar, sesame seeds
pinch of pepper

Steps:

1. Cut thin the beef, onion, carrot, shiitake mushrooms.  Put wood ear mushrooms in a bit of warm water.
2. Mix beef, beef spices together.  Fry
3. Blanche spinach in slightly salted water.  Drain, rinse with cold water.  Mix with Spinach spices.
4. Blanche shiitake mushrooms.  Drain and mix with mushroom spices.
5. Add olive oil to a heated pan.  When hot, fry the onion, beef, carrot, and all mushrooms.  Let cool
6. Boil noodles 8-9 mins.  Rinse with cold water 2 or 3 times until cool.  In a pan, add noodles, noodle spices.  Saute until they're the color of soy sauce throughout.
7. Mix noodles with spinach, beef, mushrooms, Tossing ingredients.  Salt and pepper to taste.

Notes:

- I haven't made this dish yet, mostly because every time I think about making it, we have it for lunch at school.  Let me know how it goes!

- I imagine you can leave out the mushrooms, or substitute in others if you find shiitake and wood ear mushrooms difficult to find.