Ham Rolls

2 packages of rolls
Thinly sliced ham
Swiss cheese slices

1 stick of butter, softened
4-5 tbsp mustard
2 tbsp poppy seed
1 tbsp grated onion

Slice rolls in half. Spread sauce on each half, layer ham and cheese.
Put together in a pan and bake at 350 degrees about 15 minutes or until cheese melts.