Place roll bottoms in a baking pan.

Place 2 slices of ham and cheese on each roll.

Place roll tops on each sandwich.

In sauce pan, mix melted butter, mustard, Worcestershire sauce, and onions.

When mixture is melted, pour over sandwiches; add poppies. (Note: you can also put any leftover mixture in each sandwich).

Cover with foil and let refrigerate overnight if able. Bake at 350 for 15-20 min.