1Finely mince the garlic and shallots, then fry them in olive oil until soft and browned.
2Blanch the cavolonero until soft, then blend it with a splash of water and cream into a smooth sauce.
3Add the butter beans and green sauce to the pan. Squeeze 1/2 of the lemon, add salt and pepper, then simmer for 10-15 minutes, or until the beans soften and the sauce thickens.
4Top with more cream, olive oil, salt, and pepper, and serve with crispy bread.