Slice 1 dozen finger rolls. Layer with sliced ham and Swiss cheese.
Slice into individual servings.

1/2 c. melted butter
1 tbsp. onion flakes, diced
2 tbsp. poppy seeds
1 1/2 tbsp. prepared mustard
1/2 tsp. Worcestershire sauce

Cover sandwiches and refrigerate overnight. Bake at 350 degrees for 15 to 20 minutes. Can freeze before or after baking.