Slice the round bread in half and open both sides on a flat surface.
Brush both inner sides of the bread with oil from the Olive Salad or extra virgin olive oil, go a little heavier on the bottom.
Begin layering thre ham, salami, and mortadella on the bottom half of the bread. Top with cheeses.
Next, add the olive salad from the center out and spread it, leaving about a half-inch around the edge. Place the top half of the bread over the olive mixture, and press down to let the bread absorb the olive salad juices.
Using a bread knife, slice into 4 to 6 wedges.
Optional: place the whole sandwich, before slicing, on a large baking sheet, and toast/warm-up in a 350F preheated oven for about 5 minutes.