Cut the pork fillet into thin strips. Season with pepper, and sauté in a non-stick pan for 2 minutes on each side, to seal and brown the strips. Remove from the pan.
Sauté the onion, garlic, cauliflower and carrot for 3 minutes.
Add the spring onions, Chinese leaves, ginger and chicken stock to the pan. Cover and simmer gently for 2-3 minutes.