Heat the olive oil in a large saucepan over a medium heat. Add the onions and season, then cook for 5 minutes or until softened. Add the swede and carrot and sauté on a low heat for 10 minutes.
Add the chilli, paprika, stock, chopped tomatoes and tomato pureé. Sauté for 5 minutes. Add the peppers and bring to the boil. Reduce the heat and simmer for 15 minutes.
Add the prawns and cod and place a lid on top of the pan. Cook for 5 minutes over a medium-high heat. Take off the heat and add the spinach. Allow it to wilt, stirring occasionally. Add the juice of one lime and sprinkle over the coriander. Serve with the lime wedges.