Heat oven to 220C/200C fan/gas 7. Put the peppers, onions, tomatoes and olives into a large, deep baking tray and cook for 15 mins until they start to soften and char at the edges.

Stir in the passata, butter beans and seasoning, then make 4 little areas and nestle in the cod. Return to the oven and cook for a further 15 mins until the cod is cooked through. Sprinkle over the basil and serve with crusty bread, if you like.