Eating In

1 tbs sunflower oil
1 large onion finely chopped
3 medium carrots chopped
500g lamb mince (not beef)
2 tbs tomato pureé
2tbs Worcester sauce
500ml stock
900g potatoes
85g butter
3tbs milk
Heat the oil and fry the onion and carrots in a saucepan for a few minutes, until they soften. Increase the heat and add the lamb mince, breaking it up with a spoon and stirring it regularly. Pour off any excess fat and save for another dish. Add the tomato pureé and Worcester sauce and combine well. Add the stock, cover and simmer for about 40 minutes, taking the lid off after 20 minutes. Heat the oven to 180ºC/Gas 4. Make the mash with the potatoes, butter and milk. Put the mince in an oven proof dish, top with the mash, roughing up the surface and bake until the top is browning, about 25 – 30 minutes. Let it stand for a few minutes before serving.