Scalloped Eggs

4 hard-boiled eggs 2 tablespoonfuls of butter 2 level tablespoonfuls of flour 1/2 pint of milk 1 cupful of finely chopped cold cooked chicken or fish 1 teaspoonful of salt 1 saltspoonful of pepper Chop the eggs rather fine. Rub the butter and flour together, add the milk, stir until boiling, add the salt and pepper. Put a layer of eggs in the bottom of a casserole, or baking dish, then a layer of the fish or chicken, then a little white sauce, and so continue until the ingredients are used. Dust the top thickly with bread crumbs and bake in a moderate oven until nicely browned.