Preparation: Remove the core of the cabbage. Itu2019s not absolutely necessary but it will ease our job later on. Place the rinsed whole cabbage head into hot water. Cook it until the leaves are easily come off for about 3-10 minutes. Take it out and let it cool or cool it down in cold water. Cut the Bacon or pancetta or any other type of pork that we can use as lardon.u00a0 We can substitute it with a tablespoon of fat or cooking oil as well. No harm would be done. Place them into a frying pan and preferably on low to medium heat render the fat out. Meanwhile the bacon is in the frying pan dice up the onion carrot and celery then add it into the pan. u00a0Saute the vegetables with the bacon on medium heat for about 5 minutes until the onion gets a slight translucent/glassy look. This takes around 5 minutes. Add the ground meat and mix it well with the vegetables. Increase heat to medium-high and cook the beef for 10-15 minutes while stirring it often until all the bigger chunks are falling into smaller pieces. At this point the beef should lose all its pinkness and itu2019s browned properly. Add the water or wine tomatoes salt black pepper and milk. Mix it well together put the lid on and simmer it for 4 hours on low heat stirring occasionally. For more detailed instructions for the filling check out how to make Bolognese sauce a.k.a Ragu. If our patience is wearing thin then use pureed tomato and cook it only for about 30 minutes before getting it ready for layering. Mix finely cut oregano basil or herbs of choice with the ricotta cheese in a bowl. Slice the mozarella up. Assembly: Remove the cabbage leaves. Spread some sauce on the bottom of a casserole dish. Place the first layer of cabbage on the sauce. Spread some ricotta cheese on the cabbage leaves evenly. We will need the cheese for 3-4 layers depending on the size of the dish. Place the mozarella slices on top of ricotta cheese. Ladle tomato sauce on top and spread it evenly out. Continue with the layers until the top of the casserole dish has been reached. The top should only have cheese. Place it in a 390�F / 200�C oven until the top of the cheese gets a golden brown color for about 30 minutes. Let it cool and settle the flavors before serving.