Lasagne

Name: Lasagne
Prep time: 1 h
Cook time: 3 h 10 min
Total time: 4 h 10 min
Cuisine: Italian
Ingredients: 3 tbsp olive oil; 2 celery sticks, finely chopped; 1 onion, finely chopped; 1 carrot (about 100g), finely chopped; 3 garlic cloves, crushed; 140g cubetti di pancetta; 500g beef mince (we used 10% fat); 500g pork mince or British veal mince; 200ml milk; 2 x 400g cans chopped tomatoes; 2 bay leaves; 1 rosemary sprig; 2 thyme sprigs; 2 tsp dried oregano; 2 beef stock cubes; 500ml red wine; about 400g dried pasta sheets; 50g parmesan, finely grated; 1.5l milk; 1 onion, thickly sliced; 3 bay leaves; 3 cloves; 100g butter; 100g plain flour; good grating of nutmeg