1/4 c. butter
1/4 c. horseradish mustard
6 tsp. poppy seeds
6 hamburger buns
6 slices ham
1 sm. onion, thinly sliced
6 slices Swiss cheese

Mix together butter, mustard and poppy seeds. Spread mixture on both top and bottom of inside of buns. Place ham slice on bottom half of each bun. Top each with onion and slice of cheese. Close sandwich and wrap in aluminum foil. Bake on a cookie sheet in oven at 350 degrees for about 20 minutes. Serve hot. Makes 6 sandwiches.