Preheat oven to 400°; pat fish dry, line a sheet pan with foil, drizzle fish with sauce packet, 1 tbsp oil + salt/pep; bake 10-12 min until firm, opaque + cooked through

Meanwhile, boil a pot with ½ cup water + pinch of salt; place beans in boiling water, cover + steam until tender, about 3-4 min; drain, season with salt/pep + a drizzle of oil; divide between plates

Wash scallions, thinly slice crosswise + discard roots; divide halibut to plates, sprinkle with scallions + dig in!