For the steaks, preheat grill pan or oven broiler (with the rack 3 inches from heat source) on high temperature.
For the salad, combine all the ingredients in a bowl, and mix gently. Marinate salad for at least 5–10 minutes to blend flavors before serving. (Salad can be made up to 3 hours in advance and refrigerated.)
Season the steaks with salt and pepper, and lightly coat with oil.
Grill or broil 2–3 minutes on each side, or to your desired doneness (to a minimum internal temperature of 145 ºF).
Remove from the heat and let cool for 5 minutes.
Serve one 3-ounce steak with ½ cup salad on the side.