Preheat oven to 350 degrees F. Coat a 9×13 baking dish with cooking spray. On a lightly floured surface, roll dough into approximately a 11×15-inch rectangle. Top with the ham, followed by the Provolone. Spread the cream cheese evenly over the top.
Starting with a long edge of the rectangle, roll dough tightly. With the seam facing down, cut into 12 equal pieces. Place the roll-ups in the prepared baking dish.
In a medium bowl, combine the butter, mustard, Worcestershire sauce, onions and Parmesan cheese. Mix well and pour evenly over tops of the roll-ups. Sprinkle the poppy seeds over the top.
Bake in the preheated oven for 30-35 minutes, or until edges are golden brown. Serve warm!