Pulse the cauliflower in a food processor until it resembles rice. Add the cauliflower and soy to the pan, and stir together. Add the green beans and peas, and cook, stirring, for 1-2 mins until hot through. Divide between two plates and serve with sweet chilli sauce for drizzling. Break the prawn crackers into rough crumbs. The crackers absorb moisture quickly so, to keep them crunchy, it’s best to serve them in a dish on the side to sprinkle over the rice while eating.