I'm not sure about you but during this time of year, I'm ALWAYS looking for ways to use up leftover cranberry sauce. I love making this Cranberry, Chocolate French Toast Casserole with cranberry sauce leftovers and it's always a big hit. Another one of my favorite ways to use up cranberry sauce is in this Cranberry Lime Margarita recipe. It's fun, festive and super simple to make. None of your guests will guess that its made with leftover cranberry sauce!