Powder the oats in a grinder
Take oats powder in a bowl
Add curd,salt chopped onion,chilli
Add little water and keep mixing
Make smooth thick paste
Make paste like uttapam batter
Heat a pan add teaspoon of oil
Add ladelful of batter and spread evenly into round shape
Let chilla cook on medium flame
Once it cook in bottom side spread some oil
And flip the chilla
Cook other side as well
Once both side is cooked turn off the flame
Take chilla in serving plate
Serve hot chilla with green chutney.