Step 1

Spray a 7 x 10 x 3-inch deep bake dish with cooking spray.

Step 2

Remove rolls from the packaging and slice them horizontally in half. Place the bottom half into the prepared bake dish. Layer ham and cheese evenly over the base, then re-position tops.

Step 3

Combine butter, Worcestershire sauce, mustard, brown sugar and onion powder. Mix well and pour over the rolls. Cover with plastic wrap and chill overnight (or a minimum of 4 hours).

Step 4

Preheat oven to 350 degrees F. Bake the rolls for about 20 minutes, uncovered, and serve while warm.