Veg Omelette/All flours Omelette

This is my own invention. I don't know if anybody make this before or it is already known to people like dosa, idly. But, I only know when I made it with my own idea. I really don't know what shall I call this so I christened it as veg omelette. The appearance of this is like real omelette so I named it like that. :)

Ingredients:

Bengal gram powder/Besan -1 cup
Maida/All purpose flour - 1 cup
Wheat flour - 1 cup
Rice flour - 11/2  cup
Sour Buttermilk-1 cup
Onion - 1 medium sized(finely chopped)
Tomato-1 medium sized (finely chopped)
Green chillies-2 (finely chopped)
Curry leaves-5 or 6 (finely chopped)
Coriander leaves - 1tbsp (finely chopped)
Salt-to taste
Red Chilli powder-a pinch
Water-as needed

Procedure:

Mix all the flours and add sour butter milk to them. Add salt and red chilli powder. Keep it aside for half an hour.
After half an hour make thin batter while adding required water. The batter should be in thin and pouring consistency. 
Add chopped onions, tomatoes, green chillies, curry leaves and coriander leaves to the batter. Mix well. 
Heat dosa tawa/pan pour the batter and add one table spoon of oil to the dosa. Use a tumbler to pour batter on the dosa tawa.
Cook for 2 minutes or till done and flip the dosa and again cook for a while. Serve hot with tomato sauce.