Preheat the oven to 350 degrees. Line a baking sheet with aluminum foil and lightly spray with cooking spray.
Remove the rolls from the package and slice the rolls in half horizontally (don’t separate the rolls. Treat them as one giant slab of bread.)
Place the bottom half of the bread cut side up and spread with half of the mayo and mustard. Then spread and even layer of turkey meat on the bread. Sprinkle with cheese. On the top half of the bread, spread the remaining mayo and mustard as well as the cranberry sauce. Place the top half of the bread onto the bottom half, making 12 sandwiches. Drizzle the melted butter on top of the sandwiches and then sprinkle with poppy seeds. Cover loosely with foil and bake for 20 minutes or until the turkey is warmed through and the cheese is melted. Remove foil and bake for another 5 minutes to let the rolls brown. Remove from the oven and slice into individual sandwiches. Serve warm!