Brush out the wok if necessary. Add a little more oil if needed and fry the ginger and garlic, then add the pak choy to the wok and toss for a minute or two until starting to wilt but not coloured.
Add the onions, red bell pepper, and other vegetables (except for the bok choy and bean sprouts). Stir-fry for about 5-7 minutes. Mix in the red curry paste and stir well. Pour in the coconut milk, ...