Step 1

Spray a 9x13’’ dish with baking spray. Set aside.

Step 2

Assemble the sandwiches: Slice the rolls in half horizontally and place the bottom halves in the baking dish. Layer 1-2 slices of ham and cheese on each roll and cover with roll tops.

Step 3

Make the sauce: In a small bowl mix together the melted butter, mustard, grated onion, and Worcestershire sauce. Spoon the sauce over the tops of the sandwiches.  Allow rolls to rest for 10-15 minutes before baking, or refrigerate for up to 1-2 days (depending on how fresh your ingredients are).

Step 4

Bake at 350 degrees F for about 15 minutes, or until warmed through and the cheese is melted.