Rava 1 cup
Curd 1/2 cup
Thinly chopped carrot and cabbage 1 cup
Pepper powder 1 tablespoon
Salt to taste
Baking soda 1 tsp
Method
In a big bowl mix everthing together except baking soda.
The batter should not too thick or watery. If required could add water to get correct consistency.
Keep the batter aside for 10 min.
Just before preparing add baking soda, give it a good mix.
Grease a microwave idli plate with oil and start adding the batter to it as we do for regular idli.
Keep it microwave high power for 2 min. Insert toothpick to check if done. If not not done, keep 30 sec more.
Remove from microwave and let it cool for 5 min, then remove the idli sand it's ready to serve.
Note:-
To make it more flavorful you could add tempering of mustard seeds, curry leaves to the batter.
You could replace pepper powder with green chilies.
If you don't have mw idli plate, take a microwave safe bowl and fill half the bowl with batter and mw for. 2 min. Picture below shows microwave idle in bowl.