1 lb. chipped chopped ham
1 pkg. sliced Swiss cheese
1 doz. sandwich buns
1 stick melted butter
2 tbsp. prepared mustard
2 tbsp. poppy seeds

Mix together butter, mustard and poppy seeds. Spread on both sides of bun. Add ham and cheese. Wrap in foil and put in oven for 20 minutes at 350 degrees.