Pastitsio (Greek pasta bake)

Method

1. Heat the oil in a pan, add the onion and garlic and fry over a medium heat for 3 minutes, until softened. Turn the heat to high, add the mince and aubergine and fry for 4 minutes to brown all over. Add the purée, tomatoes, herbs and stock, bring to the boil and simmer for 25 minutes until the lamb is tender. Preheat the oven to 180°C/fan160°C/gas 4.
2. Meanwhile, cook the macaroni in boiling water according to the packet instructions, then drain and set aside.
3. Make the white sauce. Put the butter, flour and milk into a large jug and whisk. Microwave on high (900W) for 4 minutes, stirring twice until the sauce has boiled and thickened.
4. Pour half the macaroni into the base of a 2-litre ovenproof dish, spoon over the meat mixture and top with the rest of the macaroni, or do the same in individual ovenproof dishes. Add the egg to the white sauce, whisk, and pour over the pasta. Sprinkle with the cheese and bake individual pastitsios for 15 minutes or the larger one for 25 minutes, until golden. Serve with a green salad.