1 carrot, chopped
2 sticks celery, chopped
3 garlic cloves, crushed
1 onion, finely chopped
1 x 400g/14oz tin chopped tomatoes
250-300g/9-10½oz dried lasagne sheets that don’t require soaking
75²µ/2½´Ç³ú plain flour
1 bay leaf
400-500ml/14-18fl oz beef stock
sea salt and freshly ground black pepper
¼ tsp freshly grated nutmeg
olive oil
extra virgin olive oil, for drizzling
2 tbsp tomato purée
75²µ/2½´Ç³ú unsalted butter
1 litre/1¾ pint full-fat milk
150²µ/5½´Ç³ú parmesan, to serve
500g/1lb 2oz beef mince
125ml/4fl oz red wine