Onions
Zucchini (not frozen)
28 oz. can tomatoes
Potatoes
Grated cheese
1 lb. hamburger (any meat can be used, eg: pieces of pork, chicken, veal, etc.)
Salt & pepper
In a 9x13" pan, put a small amount of oil to lightly cover bottom. Put a layer of sliced potatoes, a layer of zucchini slices...