Ingredients

• 4 skinless, boneless chicken breast halves (6 ounces each), lightly pounded to an even thickness

• Kosher salt

• Freshly ground black pepper

• 1 stick unsalted butter, softened

• 2 tablespoons finely chopped dill

• 2 tablespoons finely chopped chives

• All-purpose flour, for dusting

• 3 large eggs, beaten

• 1 1/2 cups panko breadcrumbs, crushed

• 2 tablespoons extra-virgin olive oil, plus more for frying

• 1 tablespoon fresh lemon juice

• 1 large bunch of arugula, stemmed