12 slices boiled ham
12 slices Swiss cheese
12 onion rolls
2 sticks butter
3 tsp. prepared mustard
1 1/2 tsp. poppyseed
1 tsp. Worcestershire
1/2 c. onion (finely chopped)
Aluminum foil

Combine butter, mustard, poppyseed, Worcestershire and onion in a bowl. Spread some on an onion roll Place sliced ham and cheese on the roll, wrap in foil and freeze. Bake at 400 degrees for 20 to 30 minutes.