Slimming World - Beef in Oyster Sauce

Having lost weight while I was pregnant with Ivy I'm back on Slimming World to keep the momentum going. I'd like to get down to 10 stone (2lb lost, two and a half stone to go...). Because of this I'm looking at my existing recipes and tweaking them where necessary to be Slimming World friendly. This is the first of them:

Beef in Oyster Sauce

Makes 2 portions. 2 Syns on Extra Easy or Original

200g Steak, all visible fat removed
3 tbsp Oyster Sauce
2 tbsp Light Soy Sauce
0.5 tsp Sugar
1 tsp Dried Chili Flakes
200g Leafy Green Vegetables (I like Pak Choi or Pointed Cabbage) 
Fry Light

 Boiled jasmine rice to serve

1. Hammer the beef flat (I do this by putting it under some cling film and hammering it with my rolling pin) and then cut into ribbons.
2. Put the beef in a bowl with two tablespoons of the oyster sauce, the soy sauce, sugar and chili flakes to marinade. About 20 minutes is enough 
3. Chop the green veg into ribbons.
4. When the beef is marinaded spray a non stick wok with fry light and turn the heat right up. Add the beef and it's marinade and stir fry until it's cooked to your liking.
5. Take the beef from the wok and put to one side for a few minutes
6. Put the green vegetables into the wok with the remaining tablespoon of oyster sauce and stir fry until cooked to your liking. You may need to add another spritz of fry light before adding the green vegetables to stop them sticking.
7. Add the beef to the green vegetables and combine
8. Serve immediately with boiled rice.

This can be made in several variations. So far I've tried it with chicken or duck instead of the beef both of which work well.