1 1/2 stick butter, melted
3 tbsp. mustard
1 sm. onion, chopped
3 tbsp. poppy seeds
1 pack ham
1 pack Swiss cheese
Sm. dinner rolls, 24 to pack

Cut rolls in half. Mix first 4 ingredients. Spread on rolls. Place ham and cheese. Put rolls back together. Cover with foil. Heat for 20 minutes at 350 degrees.