This all-in-one casserole, with its soft, creamy texture, can be served for breakfast, lunch, dinner or all three In fact, it was such a huge hit out of our test kitchen that many people asked for a sneak peek at the recipe. Although simple, our secret to this custard-y entre is making it with soft white sandwich bread; a pain de mie, with its straight sides and tighter crumb, is especially suitable.
