In a gratin dish, layer the thin fennel slices. Drizzle the coconut milk and lemon zest and juice.Salt and pepper and place in the hot oven, center for 1h 30 minutes. All the liquid must be evaporated at the end of cooking. If not keep in the oven a bit longer.
Giangi's Kitchen provides nutritional information, but these figures should be considered estimates, as a registered dietician does not calculate them.