Blitz the cauliflower in a food processor or grate with a veggie or cheese grater. If using a food processor, blitz just a few florets at a time. The more you put in your food processor, the longer it will take to blitz them down, which can result in too fine or even mushy 'rice'.
Steam the cauli-rice until it's almost done. I microwaved it at 600W for 10 minutes.
While the cauliflower is steaming, cut the cabbage and bell pepper into thin strips.
Heat up the olive oil and stir-fry the cabbage and bell pepper together with the spices until they have softened, ca. 10 minutes
Add steamed cauli-rice to the cabbage mixture.
Stir together and add the soy sauce.