Preheat oven to 350°F.
Meanwhile, cut the chicken breasts into pieces. Add to an oiled frying pan, and sauté for a few minutes until chicken is cooked.
Drain the cauliflower and put it in a casserole dish.
In a large bowl, mix together the mozzarella and coconut cream. Add the onions, the chicken, and the garlic. Stir well.
Cover dish with foil and bake for 25 minutes; remove foil and continue to bake for 5 or 10 minutes until golden.