Choose fresh cod for best texture and flavor. Don't overcook to avoid dryness. Use olive oil generously to keep fish moist. Pat dry the fillets before seasoning. Try baking in parchment paper for extra moisture. Pair with simple sides like steamed vegetables, rice, or salad. Variations include adding herbs, spices, different citrus, crusted toppings, vegetables, or marinating before baking. Store leftovers in an airtight container in the fridge for up to 2 days and reheat gently.