Split 3 pkgs. Of Pepperidge Farm party rolls.
Mix together:
1/2 lb. soft margarine
3 TBS prepared mustard
3 TBS poppy seeds
1 med onion finely chopped (I use less)
1 TBS Worchestershire sauce
Spread this mixture on both halves of split rolls.
Sprinkle with:
1 lb shredded (or shaved) boiled ham
1/2 lb Swiss cheese, grated
Wrap in foil and heat 10 minutes at 400.
Enjoy!