1 stick butter
2 tbsp. prepared mustard
2 tbsp. poppy seeds
2 tsp. Worcestershire sauce
3 tsp. grated onion
2 (4 oz.) pkgs. sandwich ham
2 (6 oz.) pkgs. Swiss cheese
2 pkgs. Pepperidge Farm rolls

Combine the first 5 ingredients. Spread the mixture on both sides of sliced rolls. Add cheese and ham. Cover with aluminum foil and heat in 350 degree oven until cheese melts.