Lay out three small bowls and fill one with flour, another with the egg, and the last with the panko
Dredge each piece of chicken in the flour, then egg, then cover with panko making sure to thoroughly cover the chicken at each step and let extra egg drip off before putting in the panko
In a medium skillet, heat the oil over medium-high heat
Place the chicken into the oil and fry until it is cooked through and golden brown, turning at least once, about 5-10 minutes per side, depending on how thick the chicken breast is
Sprinkle the chicken with salt after it finishes cooking
Meanwhile, whisk together all of the ingredients for the salad dressing in a medium mixing bowl
Add the arugula and red onion to the dressing and toss gently to coat
Divide the salad and chicken among your serving plates and top with capers and parsley to garnish