Peel the potatoes and cut into very thin slices. Chop onion. Place a layer of vegetables on a greased baking dish. Sprinkle with seasonings, parsley and diced bacon. Dot with butter. Repepat layers until all ingreds. are used. Pour milk over top with cheese. Cover and bake in a preheated 350 F. oven for 45 min. Uncover and continue cooking until potatoes are done and top is nicely browned. NOTE: A collop is a small portion of any food.