Heat oil in the pan, add ajwain or chopped onion saute it till soft.

Now add turmeric powder and chopped tomatoes cooked tomatoes till soft and add potato or green chilli saute for 2 -3 min

Now added vermicelli mix well add needed water.

Cover and cook till absorb water in vermicelli. Cooked.them the vermicelli or potato till soft.

Add green coriander leaves. Serve hot.