1 1/2 lbs. shaved ham
3/4 lb. Swiss cheese, shredded
1 med. onion, finely chopped
3 to 4 pkgs. Pepperidge Farm party rolls
2 sticks butter, softened
3 tbsp. mustard
1 1/2 tbsp. poppy seed

Soften butter and add mustard, poppy seed, and finely chopped onion. Slice rolls in half (top layer and bottom layer). Spread mixture on bottom half of rolls. Add shaved ham then the shredded Swiss cheese. Microwave 1 1/2 to 2 minutes on high or until the cheese is melted. Add the top part of the rolls, place back in plastic bag and refrigerate until ready to serve. Reheat in microwave before serving.