Ham and Swiss Cheese Rolls

Joni Joiner gets a gold star for this one! It was delectable! I wish I had more elaborate words for it, but I'm at a loss! The small serving size made me feel better about having 2 or three or four... Swiss cheese on black forest ham with a 'secret' sauce on a sweet King's Hawaiian roll. I was anxious to get this recipe to recreate it. I think I'm going to try it with a slice of grilled pineapple.

1 pkg Rolls {King's Hawaiian is best}
1 pkg ham {again, black forest is what she used. What I'd recommend}
1 pkg Swiss cheese, thick or deli sliced
1 stick butter, softened
2 tsp mustard
2 tsp Worcestershire sauce
1 small onion, grated

Mix butter, mustard, Worcestershire sauce and onion. Slice the rolls in half and spread the sauce on one or both sides of the roll {She had it on one side so it wasn't too strong for us first timers, but I'm excited to try it on both sides.}. Add one piece of ham, folded in quarters. Cover with cheese and replace top of rolls. Place on a cookie sheet and bake at 350 until cheese is melted.