Preheat oven to 350° Fahrenheit and lightly spray bottom of a 9x13 pan with a non stick cooking spray.
In a small mixing bowl, whip cream cheese and powdered sugar. Set aside.
Open the package of Hawaiian rolls. Keeping all the rolls together, carefully slice the rolls in half keeping all the tops attached together to create 'slab' of tops and the bottoms together to create s 'slab' of bottoms.
Place the 'slab' of bottoms in the 9x13 pan. Spread bottoms with whipped cream cheese, then cranberry sauce. Top with sliced turkey. Top with top 'slab' of buns.
In a measuring cup, whisk together melted butter, mustard, poppy seeds, Worcestershire sauce, dried onion and pepper. Pour over tops of rolls and down the sides. Use a pastry brush to spread evenly.
Bake in preheated oven for 20 minutes or until golden and crisped. Remove from oven. Let sit 5 minutes before cutting and serving.