Is it too early to think about leftover turkey? How about a different kind of turkey sandwich: a quesadilla? It’s a turkey-and-cheese-filled tortilla. They’re pan-fried and served with coleslaw. You can make them with leftover turkey or chicken, or buy roasted turkey breast at the supermarket deli. In fact, you can use this recipe for any type of leftover roasted or deli-bought meats.