From 1918:

6 potatoes
3 cupfuls milk
3 medium sized onions
½ cupful buttered crumbs
2 teaspoonful salt
12 tablespoonful grated cheese
¼ teaspoonful pepper

Peel and slice thin the potatoes and onions.
Place potatoes, onions, grated cheese and seasonings, in alternate layers, in a baking dish. Add the milk to cover, and scatter buttered bread crumbs and grated cheese on top. Bake in a moderate oven one and a half hours.
Here is another nutritious, well balanced and very palatable dish to serve in our meatless menus.
In this recipe the cheese and milk form the chief source of protein. The combination of the onions, cheese and potatoes gives a very pleasing flavor.
The recipe will serve six people and costs only 26 cents.