Heat oil in a pan and add chopped onion. Saute well the onions.
Now add cumin seeds, asafotida, turmeric powder, garam masala, coriander powder and roast well.
Now add finely chopped tomatoes and green chillis. Saute the tomatoes.
Now add 2.5 cup water, salt and let it boil.
Now add oats and mix well.
After 3-4 minutes turn off the flame.
Add chopped coriander and mix well.
Serve hot.
