Begin by horizontally slicing the ciabatta loaf in half, creating two equal pieces. Drizzle a generous amount of olive oil on each cut side to enhance flavor.

Spread the olive tapenade evenly across both halves of the ciabatta. On the bottom half, sprinkle the crumbled goat cheese, followed by tomato slices, shredded chicken, sliced pepperoncini, and arugula.

Place the top half of the ciabatta over the filling and wrap tightly in plastic wrap to maintain its shape.

Position a heavy object on top of the wrapped sandwich and refrigerate for at least 1 hour to press and meld flavors.

When ready to serve, unwrap and slice the sandwich with a serrated knife. Serve with sides like salad or potato salad.