Preheat grill to high + oil grates; cut off the stem of 1 onion, discard outer skin, then carefully slice onion into ¼ to ½-inch rounds; drizzle with oil + salt/pep; grill 5 min with lid closed, flip + grill 4-6 min until charred + slightly softened

Meanwhile, rub steaks with 1 tbsp oil + salt/pep; grill 2-5 min with lid closed, flip + grill 3-4 min more until charred + cooked through; brush steaks each with 2 tbsp sauce in last 2 min of grilling; rest 5 min + slice

p>Tear corner of rice to vent + heat in microwave 90 sec (careful—it'll be hot!); divide to bowls

Divide steak + onions to bowls then drizzle steaks with 1 tbsp sauce—looks good!