Heat lightly oiled skillet over med-high, pat beef dry, add to pan in one layer + sear 2 min (for well done add 1 min); flip + cook 1 more min, season with salt/pep + set aside

Cut onion in half from root to stem, peel + thinly slice ½ of onion; cut green beans into 2-inch pieces; heat 1 tbsp oil in skillet on med-high, cook onions + green beans with salt/pep 5-7 min until softened

Meanwhile, tear corner of rice to vent + heat in microwave 90 sec (careful—it'll be hot!); if using a skillet, warm 2 min with 1 tbsp water; divide into bowls

Add beef + 4 tbsp sauce to veggies, then cook 1-2 min until warm; divide into rice bowls