NOTE: To make the cauliflower rice, process the cauliflower florets in a food processor until the size of rice and steam in a small pot with 1 inch of water in the bottom and stir once or twice during cooking. Another option is to steam the rice, drain off the water and add directly to the soup instead of serving the soup over the rice separately. You may even be able to cook the cauliflower rice directly in the broth if desired. If you choose to do this add the coconut milk towards the end of cooking. See this post How to Rice Cauliflower for a more detailed explanation on cooking cauliflower rice. I've also used steamed rainbow chard or other greens, and spaghetti squash instead of the cauliflower rice. You could also cook another vegetable in the soup like broccoli or a different vegetable you prefer.