Chinese Beef and Bamboo Sandwich (滑蛋筍片牛肉三文治)

Ingredients:

7 oz shredded lean beef
5 oz bamboo shoots
2 oz butter lettuce
2 green onion
Half cup julienned onion
1 oz sliced ginger
½ tsp salt
A quarter tsp white pepper powder
2 tbsp cooking oil
1 tsp sesame oil
2 eggs
4 buns
2 sliced Havarti cheese
1 tsp hot sauce

To marinate the beef:

1 tbsp cornstarch water
1 tsp sesame oil
1 egg white
1 tsp soy sauce