Think of this recipe as a late-night munchies homage to that most perfect of all late-night munchies, the Taco Bell Crunchwrap. It’s a deceptively simple layering of textures and flavors: a soft flour tortilla wrapped around seasoned ground chicken, sour cream, shredded cheese, lettuce, tomato, and the thing that makes it crunch: a crispy corn tostada shell. It’s a thing that has to be eaten straight from the pan (10 minutes out of the pan, the crispy tostada layer is no longer, well, crispy). Serve it a party where everybody’s standing around the range, and you can cook in multiple batches (with lots of helping hands to aid with the layering and rolling). You can give everybody their own, or cut in two (if you try and go smaller than that, everything tends to fall out).