Heat the oil in a large flameproof casserole dish over a medium heat. Fry the meatballs for 5 mins until browned, then transfer to a plate with a slotted spoon.

Fry the onion and peppers with a pinch of salt for 7 mins. Add the coriander stalks, garlic, paprika and cumin and fry for 1 min more. Tip in the sugar, tomatoes and beans, and bring to a simmer. Season, return the meatballs to the pan and cook, covered, for 15 mins. To freeze, leave to cool completely and transfer to large freezerproof bags.

Serve the chilli with the rice and the coriander leaves scattered over.