To assemble the lasagne, cover the bottom of a small baking dish with lasagne sheets, about 20 x 20cm or a similar size, then spread over a fifth of the ragù. Follow with a fifth each of the cream, Parmesan and chives. Continue layering in the same way until you’ve used up all the ingredients. Drizzle over ½ tablespoon of the habanero oil, cover tightly with foil and bake for 20 minutes.