Blanch the cabbage leaves in boiling hot water for a minute or boil them for 5 minutes if the leaves are thick. Drain them after they turn translucent. Refresh them in cold water and keep aside.
Heat oil in a pan and saute the onion, ginger, garlic and green chilies till the onions turn translucent. Add the bell peppers and saute for a minute.
Now add all the rest of the ingredients, except cabbage leaves and coriander leaves. Saute for a minute and keep aside to cool down.
Take each cabbage leaf and place 2 tbsp. of the stuffing on it, followed by 1 tsp. of the coriander leaves.
Gently roll the cabbage leaf and place them on a serving plate. Make similar rolls out of the remaining cabbage leaves. Serve along with tomato sauce as perfect appetizers