Preheat the oven to 180°C (160°C Fan).
Heat the olive oil in a large casserole dish and brown the sausages on all sides. Remove and set aside.
In the same pan, cook the bacon, onion, carrots, celery, and peppers until softened.
Stir in the garlic, tomato purée, smoked paprika, and thyme.
Add the chopped tomatoes, chicken stock, Worcestershire sauce, and mango chutney, then stir well.
Return the sausages to the casserole and add the bay leaf.
Cover and simmer or bake for 30–45 minutes.
Stir in the cannellini beans during the final 15–20 minutes and cook uncovered until the sauce thickens.
Season with salt and black pepper to taste.
Garnish with chopped parsley and serve hot.