Egg White and Turkey Bacon Wrap with Herbs and Arugula

Name: Egg-White-and-Turkey Bacon Wrap with Herbs and Arugula
Ingredients: 1 tablespoon extra-virgin olive oil, divided; 1½ teaspoons finely chopped fresh rosemary leaves; ½ teaspoon freshly ground black pepper; ¼ teaspoon kosher salt; ¼ medium red onion, finely chopped; 2 strips turkey bacon, chopped into ½-inch pieces; 4 large egg whites; 5 scallions, white and light green parts only, thinly sliced; ½ cup loosely packed arugula, roughly chopped; ½ cup loosely packed basil, roughly chopped; 1 teaspoon fresh lemon juice; 1 piece of lavash-style flatbread (trimmed to a 9-by-10-inch rectangle)