Spread the mustard on both slices of bread, then lay a slice of Fair Oaks Farms cheese on each piece. On one slice, arrange the turkey and the cranberry sauce. On the other slice, lay on the dressing and spoon the gravy over the top.
Carefully combine the two halves into one sandwich then spread the top side of the bread with 1 tablespoon of the butter.
Invert the sandwich, butter-side down, onto a hot panini maker (or a grill pan or skillet over medium-low heat.). Spread the top with the remaining 1 tablespoon butter.
Close the panini maker and grill until the bread is crusty and golden, the fillings are hot, and the cheese is melted.
Pull the sandwich off the heat and slice it in half. Enjoy a delicious take on leftovers from Thanksgiving that keep your mouth watering!