Giada De Laurentiis' Italian Muffuletta - cooking recipe

Ingredients

1/4 cup red wine vinegar
1 teaspoon dried oregano
2 garlic cloves, finely chopped
1/3 cup olive oil
10 large pitted green olives, chopped
1/3 cup pitted kalamata olive, chopped
1/4 cup chopped roasted red pepper
1/8 teaspoon black pepper
1 round chiabatta type bread (7-inch in diameter)
4 ounces thinly sliced ham
4 ounces thinly sliced salami
4 ounces thinly sliced mortadella
4 ounces sliced provolone cheese
1/2 red onion, thinly sliced
3 cups loosely packed arugula

Preparation

Whisk together vinegar, oregano and garlic in a large bowl until blended. Gradually whisk in oil. Stir in green olives, kalamata olives, roasted red bell peppers and black pepper.
Using a serrated knife, slice 1 inch from top of bread loaf. Split loaf horizontally, and scoop out soft bread from both halves, leaving a 1/2-inch-thick shell. (Reserve soft center of loaf for another use, if desired.).
Spread half of the vinaigrette in bottom half; layer with ham, salami, mortadella, cheese, onion and arugula. Spread remaining vinaigrette on top half of bread, and place vinaigrette side down on arugula. Cut the sandwich into 6 even wedges.