Sliced Strip Steak with Arugula and Parsley

Name: Sliced Strip Steak with Arugula and Parsley
Ingredients: 2 1-inch-thick boneless New York strip steaks (about 10 ounces each); Kosher salt and freshly ground black pepper; 1 bunch arugula, tough stems removed; ¼ medium red onion, thinly sliced; 1 red chile, thinly sliced; 4 ounces caper berries, halved if large; 2 ounces Parmesan, shaved; 1 cup parsley leaves with tender stems; 2 tablespoons fresh lemon juice; 2 tablespoons olive oil, plus more for drizzling