Grind oats to make fine powder. Add all the dry ingredients except ENO rice flour, asafetida, salt, and cumin seeds and mix it well. Notes: ENO is added just before making dosa.
Add yogurt mix, add water as needed to make batter consistency of dosa or pancake mix. Set aside for about fifteen minutes.
Add green chilies, cilantro, cabbage, and carrots mix it well.
Place a non-stick skillet over medium-high heat. Grease the skillet lightly. Test by sprinkling a few drops of water on it. The water should sizzle right away.
In a small bowl take about ½ cup of batter and add ¼ teaspoon of ENO mix it well batter will become a little frothy.
Pour the batter mixture into the skillet and spread evenly with the back of a spoon, about seven inches in diameter.
When the batter begins to dry, gently spread one teaspoon of oil over it. Wait about 30 seconds, then flip the dosa using a flat spatula.
Press the dosa lightly with the spatula all around to ensure even cooking, turning two to three times. The dosa should be golden brown on both sides.
Repeat for the remaining dosas.
Serve oat dosa with your choice of chutney, I like it with tomato chutney.