Fry the onion, mince and herbs for 5 minutes to brown. Add the tomato puree, chopped tomatoes and stock. Bring to the boil, cover and simmer for 10 minutes.

Add the kale and cook for a further 5 minutes. Season.

Meanwhile, cook the spaghetti in boiling water for 10 minutes until tender, drain and serve with the Bolognese sauce.

Kids in the Kitchen

Let the kids add the kale to the sauce, and have them fill the pasta saucepan with water to bring to the boil. Get them to stir the sauce through the pasta before serving.