Mini Baked Hamwiches

I've been making these for years, we just call them hamwiches.  For some reason I love them, they're such cheerful little things.  The original recipe is from the King's Hawaiian website.  I've changed it a bit, including cutting back on the butter substantially.  
  
For the rolls, you can use a 12 pack of the stuck together King's Hawaiian rolls, or a store brand.  They just need to be the rectangular stuck together kind, click on the recipe link above to see what I mean.  I personally love the sweet Hawaiian rolls, but my husband prefers the kind that is not sweet.  I am a nice person, so usually use the not sweet variety.
 
Mini Baked Hamwiches
 

12 pack of stuck together rolls

1/2 lb shaved ham

1/2 lb sliced cheddar

4 T butter

1 1/2 t dried minced onion

1 1/2 t Worcestershire sauce

1 1/2 T dijon mustard
 

Preheat oven to 350.  Slice slab of rolls in half so you have 2 big halves, like a giant hamburger bun.  Place the bottom half in a 9 by 13 baking dish.  Top evenly with ham and cheese, then the top roll half.  Melt butter in microwave.  Stir in remaining ingredients.  Spoon evenly over rolls.  Bake until lightly browned. 15-20 minutes (mine took 20).  Cut through sandwiches to separate. 
 
Yield: 4-6 main dish servings