Mini Hot Ham and Cheese Sandwiches

24 Hawaiian Rolls, Original

1 lb thinly sliced deli ham

1 pkg Swiss cheese, 10 or so slices

2 sticks butter

2 Tbsp minced onion

2 tsp dried mustard

2 tsp Worcestershire sauce

of ham, a layer of cheese and another layer of ham.  Put top layer of rolls back on and cut them into individual rolls.  Do this with both packages of rolls.  Place the individual sandwiches into two pans.  Melt butter in small sauce pan - adding onion, mustard and Worcestershire sauce.  Mix well.  Using a large spoon, spoon the mixture evenly over all of the rolls.  Cover and refrigerate at least one hour.  ( I often prepare these ahead and refrigerate over night) Bake at 350.  Bake covered for about 8 minutes and uncovered for 8 minutes.  Serve warm (also great at room temperature)