Preheat oven to 400º
Make or use a premade 9" or 10" pie crust.
Sprinkle flour over cheese and mix. Spoon half in the bottom of the pie crust. Top with diced ham.
In a mixing bowl, beat eggs, evaporated mild, water, onion, parsley, salt & pepper.
Pour over ham & cheese.
Sprinkle remaining cheese on the top.
Bake at 400º for 15 minutes then reduce to 325º for 25-30 minutes or until a knife in the center comes out clean.
Cool 5 minutes before cutting/serving.