This sandwich is built around contrast: buttery toasted bread, melty cheese, and the bright, jammy tang of cranberry sauce. It’s the perfect way to use up those last spoonfuls of cranberry sauce after all the stuffing and mashed potatoes are long gone. A thin swipe of Dijon mustard adds depth and savoriness, and if you still have turkey lingering in the fridge, slipping a few slices into the sandwich turns it into a heartier post-holiday treat. Whether you stick with cheese alone or layer it up, this grilled cheese is satisfying, simple, and endlessly adaptable.