2 sticks butter
3 tsp. mustard
3 tsp. poppy seeds
2 tsp. Worcestershire sauce
1 sm. onion, minced
Swiss cheese
Ham
Party rolls

Mix first 5 ingredients together and melt in microwave. Spread on both sides of party rolls. Add a piece of ham and Swiss cheese. Heat in the oven for 10 minutes at 350 degrees. (Can be prepared ahead of time and freeze. Bake 15 minutes longer or until Swiss cheese is melted.)