Quick Beef Chow Mein

Ingredients: 5.5 oz. (160g) egg noodles 7 oz. (200g) beef tenderloin 1 tbsp. sesame oil 1 clove garlic, minced 1 tbsp. ginger, grated 1/2 leek, sliced (mostly white parts) 1 red bell pepper, sliced 3 mushrooms, sliced a pinch of ground white pepper a pinch…