Ham and Swiss Sliders

Melt butter in small saucepan. Remove from heat
To the melted butter add onion, mustard, Moore's, sugar and poppy seeds. Stir to mix
Separate rolls and place the bottoms in a sprayed 9"X13" oven safe dish
Brush butter mixture over the bottoms of the rolls
Stuff each roll with a piece of ham and a piece of cheese
Brush the tops of the rolls (inside and out) with the butter mixture
At this point you can cover and refrigerate up to two days before baking
To bake, cover the dish with foil and bake at 400 degrees for 10 minutes
Then uncover and bake for about 5 more minutes or until cheese is melted and rolls are golden brown