(Be careful that the sauce doesn't dry up too much during cooking. If it does, add a little bit of water mixed with some additional pasta sauce.)
8. Peel the potatoes, chop them into quarters and boil them on the stove.
9. When potatoes are boiled through, drain the water, add butter and mash them with a fork or potato masher (I generally like this potato mixture to be a little chunky)
10. In a flat baking dish, add a layer of the Bolognese mixture, then add a layer of the potato mixture, then coat liberally with grated cheese and cook in the oven until the cheese is crispy.
Be warned though… this dish will make you feel all warm and fuzzy inside! And, it's great to freeze so you can reheat it at your convenience.