Beef (chopped into thin slices, and marinated with light soy sauce, oil and starch for around 15 minutes)
Onion and bell pepper ( chopped into small pieces)
1. Heat some oil in the pan. Put in marinated beef slices. Stir fry till golden brown with medium high heat.
2. Add in chopped onion and bell pepper. Stir fry for 1-2 mins.