Next, add the cannellini beans, sweet potato, crushed tomatoes, and vegetable stock. Stir gently, bring to a simmer, then cover partially with a lid and cook for 20 minutes or until the fregola and sweet potato are tender.
1 can (14 oz / 400 g) cannellini beans
1 medium sweet potato
1 can (14 oz / 400 g) crushed tomatoes
5 cups vegetable stock