Step 1

Heat the oil in a large saucepan or casserole pot over a low-medium heat and gently fry the onion, celery, carrot, courgette and pancetta for 10 mins. Add the garlic and oregano, and cook for 1 min. Tip in the beans, chopped tomatoes, purée, stock and bay leaf. Season to taste. Bring to the simmer and cook for 30 mins.

Step 2

Add the pasta and greens, and cook for a further 10 mins. Ladle into bowls and scatter with the basil and some parmesan.