Chilaquiles are not just for hangovers, you know. Served everywhere from the regal downtown restaurant El Cardenal to the hipster haven Chilakillers, chilaquiles are a mainstay of Mexico City menus. But they're also easy to achieve at home. Rick's version, redolent with tangy tomatillo sauce, will be your next favorite "anytime" recipe. In Chicago, the traditional chilaquiles get an elegant touch with fried butternut strips and an earthy, complex pasilla chile sauce.