Enjoy this recipe from Recipes for Comfort Cookbook.
Submitted by: Nancy Molldrem from Eau Claire, WI
1/2 c. butter, softened
1/2 c. onion, chopped
1-1/2 T. mustard
1-1/2 T. poppy seed
12 sandwich buns
12 slices cooked ham
12 slices Swiss cheese
Blend butter, onion, mustard and poppy seed together; spread thickly on both halves of each sandwich bun. Layer a slice of ham and cheese on each bottom bun; replace top bun. Wrap each sandwich in aluminum foil; bake at 350 degrees for 15 minutes. Makes 12.