Sweet onions sauteed in butter, topped with Swiss cheese and Italian bread, and then smothered in a creamy mushroom soup and soy sauce mixture. This dish needs to be refrigerated over night and then baked.

Sweet onions sauteed in butter, topped with Swiss cheese and Italian bread, and then smothered in a creamy mushroom soup and soy sauce mixture. This dish needs to be refrigerated over night and then baked.