Preheat the oven to 325 degrees Fahrenheit. Line a 9×13 inch baking dish with non-stick foil or spray with cooking spray with cooking spray.
Separate the Hawaiian Rolls (top and bottom portion) and place the bottom half of the rolls into the prepared baking dish.
Layer with turkey, cranberry sauce and cheese then place the top part of the rolls back on top of the layers of ingredients.
In a small bowl, whisk together the melted butter, mustard, garlic powder, salt and poppy seeds.
Pour butter mixture over the top of the buns and use a brush or spoon to spread the butter and spices evenly over the top.
Cover with foil and bake for 15 minutes.
Remove the foil and bake for 3 more minutes, uncovered.
Serve immediately.