Mix onions,green chillies,coriander leaves,ginger,salt in a bowl and keep it aside. Pour a ladel of dosa batter on the griddle/tava and spread it in a round shape. Sprinkle the onion mixture on the dosa evenly..Pour some oil around and in the middle of the dosa.Turn after the bottom of dosa gets brown..Now brown the onion side also. Flip it on the plate with the onion side up..Serve hot with chutney,chutney powder..
I will be sending these Onion uttapam's to Srivalli's DOSA MELA