2 (1"-thick) boneless New York strip steaks (about 10 ounces each)
Kosher salt, freshly ground pepper
1 bunch arugula, tough stems removed
1/4 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
Prepare grill for medium-high heat. Season steaks generously with salt and pepper. Grill, turning several times, until lightly charred, 7–9 minutes for mediumrare. Transfer to a cutting board; let rest at least 15 minutes before thinly slicing.
Toss arugula, onion, chile, caper berries, Parmesan, and parsley in a medium bowl. Drizzle with lemon juice and oil and toss to coat; season with salt and pepper. Drizzle steak with oil and season with salt and pepper; serve with salad.
Do Ahead
Steak can be grilled 1 day ahead. Let cool; cover and chill. Bring to room temperature before slicing.

Courtesy of Epicurious