Fried Mozzerella with Arugula and Prosciutto

Name: Fried Mozzerella with Arugula and Prosciutto
Ingredients: 2 bunches arugula (3/4 pound total),coarse stems discarded; 5 ounces thinly sliced prosciutto (8 to 12 slices); 1 (7-ounce) jar roasted red peppers, rinsed and torn into large pieces; 1/3 cup brine-cured black olives; 1/2 cup thinly sliced red onion; 2 tablespoons red-wine vinegar; 1 tablespoon anchovy paste; 1/4 cup extra-virgin olive oil; 2 large egg whites; 1 cup fine dry bread crumbs; About 2 cups olive oil for frying; 1 pound salted fresh mozzarella, cut into 4 thick slices (without rounded ends)