Halve the ciabatta. Trim the green beans, then cut into thirds.
Heat a drizzle of oil in a frying pan on medium-high heat. Add the green beans and cavolo nero. Fry, 3-4 mins. Add the butter beans (including the liquid), passata, red wine stock paste, sun-dried tomato paste, mixed herbs and sugar (see pantry). Stir to combine.
Bring the stew to the boil and simmer, 4-5 mins. Toast the ciabatta halves in your toaster. Stir the butter (see pantry) and half the cheese into the stew until melted, 1 min.
Share the stew between bowls. Drizzle over the pesto. Sprinkle over the remaining cheese. Serve the ciabatta alongside.
