Preheat oven to 400°; peel + dice shallot then mix with brussels, 1 tbsp oil + season with salt/pep; place on a sheet pan + roast 17-25 min until golden + tender

Pat fish dry + season with salt/pep/fave spices (we like garlic powder); heat 1 tbsp oil in skillet over med-high (get that pan hot, otherwise the fish will stick) + sear fish 3 min, flip + sear another 1-2 min (for well done cook 3 min on second side)

Divide halibut + halved brussels between plates—delish!