1. Cut the top off rolls and set aside. Place a slice of ham and a slice of Swiss inside of each roll. Replace tops. Place them into a large baking dish or heavy cookie sheet tightly together. 2. In a medium bowl, whisk together all of the poppy seed sauce ingredients. Pour evenly over all of the sandwiches. Just use enough to cover the tops. Let sit 10 minutes or until butter sets slightly 3. Cover with foil and bake at 350 degrees for 12-15 minutes or until cheese is melted. Uncover and cook for 2 additional minutes or until tops are slightly brown and crispy. Serve warm.