Step 1

Grease a 9×13 baking pan and preheat the oven to 350 degrees.

Step 2

In a bowl, combine the melted butter, Dijon mustard, Worcestershire sauce, poppy seeds, and minced onion.

Step 3

Open the rolls and place the bottom rolls into the baking dish, side by side.

Step 4

Layer some ham on the bottom roll and place a slice of cheese on top.

Step 5

Place the top of the rolls on each slice of cheese to create a sandwich.

Step 6

Pour mustard mixture evenly over entire pan, making sure to coat each sandwich.

Step 7

Bake in a preheated oven for about 20 minutes, or until cheese is melted and sandwiches are turning slightly golden brown.

Step 8

Remove from oven and enjoy!!