Step 1

In a small bowl, whisk together melted butter, brown sugar, dijon mustard and worcestershire sauce and set aside.

Step 2

Grease a baking pan and pour in enough of the brown sugar dijon sauce to coat the bottom of the pan; about 3-4 tbsp.

Step 3

Split the rolls down the middle and pull them apart. Line the pan with the bottom portion of the buns.

Step 4

Evenly lay half of the swiss cheese across the bottom buns, then add the ham, and the remaining cheese.

Step 5

Put the upper half of the buns on top and pour the remaining brown sugar dijon sauce on top - making sure to coat and soak each bun.

Step 6

If you’d like to add poppy seeds, lightly sprinkle some on top.

Step 7

Cover tightly with plastic wrap and refrigerate for at least 1 hour and up to 24 hours.

Step 8

When ready to bake, preheat the oven to 350F degrees and bake uncovered for 15-20 minutes or until the top is golden brown and the cheese has melted.