1 Heat the oven to 190°C (170°C in a fan oven), 375°F, gas 5.
2 Fry the garlic and shallot in hot butter, add the spinach and braise until the liquid has evaporated. Season with salt and nutmeg. Stir in the tuna and transfer to a baking dish.
3 Mix together the cream, eggs and creme fraiche. Season with salt, ground black pepper and nutmeg and pour over the tuna-spinach mixture. Sprinkle with the cheese and and bake for about 35-40 minutes until golden brown.