Preheat the broiler. Whisk the eggs and egg whites with 1/4 teaspoon salt and a few grinds of pepper in a large bowl. Heat 1 tablespoon olive oil in a large ovenproof nonstick skillet over medium heat. Pour in the egg mixture and stir with a rubber spatula until curds begin to form, 2 to 3 minutes. Transfer the skillet to the broiler; broil until set but not browned, 30 seconds to 1 minute.
Spread the marinara sauce over the eggs, leaving a 1/2-inch border. Top with the mozzarella, pepperoni and parmesan. Return to the broiler until the cheese is bubbling, 1 to 2 minutes. Set aside.
Whisk the vinegar with the remaining 1 tablespoon olive oil, 1/4 teaspoon salt and a few grinds of pepper in a large bowl. Add the salad greens and bell pepper; toss. Sprinkle the frittata with basil and cut into wedges. Serve with the salad and bread.