Baked Ham Sandwiches recipe.

Ingredients
1/3 cup butter or margarine, softened
1/2 cup dried minced onion
1/3 cup prepared mustard
2 tablespoons poppy seeds
8 hamburger buns, split
16 slices deli ham
8 slices Swiss cheese

Directions
In a bowl, combine butter, onion, mustard and poppy seeds. Spread about 1 tablespoon over both halves of buns. Layer ham and cheese on the bottom halves; replace tops. Wrap each sandwich in foil. Bake at 350 degrees F for 6-10 minutes or until cheese is melted, or freeze for up to 2 months.
To use frozen sandwiches: Bake at 350 degrees F for 30-35 minutes or until cheese is melted.