Herby cod and new potato traybake

Method

1. Heat the oven to 200°C/180°C fan/gas 6. Heat a the oil in a lipped roasting tray in the oven for 5 minutes. Toss the new potatoes in the hot oil and season well. Roast for 25-30 minutes until tender and crisp.
2. Meanwhile, heat another glug of olive oil in a large saucepan over a medium heat and add the red onion. Fry for 3-4 minutes, then add the chopped tomatoes, olives, oregano, tomato purée, sugar or agave nectar and red wine. Bring to the boil, then simmer for 10 minutes until slightly thickened.
3. Remove the potatoes from the oven and toss to loosen. Pour the tomato sauce over the potatoes and nestle the cod fillets on top. Drizzle with olive oil, season and roast for 8-10 minutes or until the fish flakes easily. Serve scattered with sliced basil leaves.