01 - Preheat the oven to 400°F and line a large baking sheet with parchment paper.
02 - In a bowl, combine potatoes, carrots, bell pepper, and zucchini with olive oil, sea salt, black pepper, and dried oregano. Toss to coat evenly.
03 - Spread the seasoned vegetables evenly on the prepared baking sheet and roast for 10 minutes.
04 - While vegetables roast, pat cod fillets dry. In a small bowl, blend olive oil, lemon juice, lemon zest, sea salt, black pepper, parsley, and thyme. Brush this mixture evenly over the cod.
05 - Remove the baking sheet from the oven after 10 minutes. Push vegetables to the sides and place the cod fillets in the center.
06 - Return the baking sheet to the oven and bake for 12 to 14 minutes, until the cod flakes easily and vegetables are tender.
07 - Serve immediately, garnished with additional parsley and lemon wedges if desired.