Mix orange juice, olive oil, sea salt, and dried herbs. Marinate haddock fillet for at least 1 hour (or overnight). Wrap the fish in parchment paper (envelope style) and bake at 180°C until cooked (~15–20 min).
Assembling the Bowl
Layer in a bowl: baked fish, quinoa, steamed Brussels sprouts, sliced cucumber, arugula, and carrot.
Dressing
Whisk lemon juice, honey, and olive oil. Drizzle over the bowl. Sprinkle with pumpkin seeds.