You can make a soup with the cabbage and tinned small white beans.
I usually make one dish with the thin part of the leave, and another with the thicker stalk part.
I use this one with the beans.
Fry finely chopped onion, see through stage.
Water, Beef stock cube, pepper, one clove garlic, crushed and chopped
Boil with beans gently for a few minutes, add a soup spoon of rolled oats, gentle boil another few minutes, add C.N. Finely chopped stalk leave part and gently boil another few minutes.