1 c. butter
4 tbsp. minced onion
4 tbsp. relish
4 tbsp. mustard
1 1/2 - 2 tbsp. poppy seeds
1 - 1 1/2 c. American cheese (grated)
1 1/4 lb. shaved ham
Hamburger buns

Mix all ingredients together. Put on buns. Bake at 350 degrees for 10-15 minutes, wrapped in foil or microwave until cheese is melted.