This is a type of sandwich that originated in New Orleans. This particular recipe was given on the Every Day Italian show on Food Network. I served it at a New Year's Eve gathering and everyone went nuts over it. Very yummy. I don't even like olives, but for this recipe they are indispensable. You will love them. Feel free to use all green or all kalamata olives, or black olives, as you prefer. This recipe is great because you can make it ahead, wrap it tightly in plastic wrap, and let it chill in the fridge for up to 24 hours before serving. A nice round sour dough loaf unsliced works well for this. You are essentially making a big bread bowl and filling it with sandwich fixings.