Cut the potatoes into slices and layer them with the beans in a greased baking dish. Scatter the bacon on top. Mix the cream, eggs and cheese. Season with lemon juice, salt, pepper, nutmeg and savory. Pour the mixture over the casserole, sprinkle some more cheese over it and put a few flakes of butter on it.
Bake in a preheated oven at 200 ° C for about 25 minutes.