Mix besan powder,coriander powder,turmeric and hing well.Add enough water to make a batter of running consistency.Then add tomato,onion and salt.

Mix well.Add more water if needed.But the batter shouldn't get too watery.It shouild have a slightly thick cocnsistency.

Let it sit for 10 mints.

Then drizzle some oil in a flat pan.Pour the batter into it.Spread it carefully with a spoon.Cook in medium flame till one side becomes light brown.

Now flip over again cook in medium flame till the omelette gets cooked well.Remove from fire and enjoy with toasted bread.