Cut rolls in half. Place roll bottoms in 9 x 13" pan. Place equal amounts of beef on each roll bottom. Top with slice of cheddar cheese. On each of the roll tops, spread a generous amount of jalapeño cream cheese spread.
Return the tops to the bottoms making sandwiches. In separate bowl, mix together the butter, Worcestershire sauce, onion and Parmesan Cheese. Pour over sandwiches and cover with foil.
Place in refrigerator overnight. Put sandwiches, still covered with foil, in 350 degree oven. Bake 20 minutes or until warmed through.
The jalapeño cream cheese spread may be difficult to find and if so, you can make your own by adding chopped jalapeños to cream cheese spread. Enjoy these delightful sandwiches!!