1 c. butter
1/4 c. mustard
1/2 c. chopped onions
1/2 tsp. dill seed
1 lb. cooked ham (sliced wafer thin)
12 slices Swiss cheese
12 potato rolls

Split rolls, spread with butter mixture, pile on ham and a slice of cheese. Wrap in foil. Heat in 300 degree oven for 15-20 minutes. These freeze nicely. If frozen, heat for 25 minutes.