Wash and soak all dals, quinoa, and oats together. Soak it for 4 hours. (Wash Quinoa properly with 3 - 4 glasses of water).
Put soaked dal and quinoa into a blender. Add salt, ginger-chili paste and cumin seeds.
Grind it very well using little water. Make it into normal dosa batter consistency.
Let it rest at a warm place for overnight or until it ferments well. Best place in oven. Turn on the lights. (Turn off the oven).
Grease your thali/plate. Add water to your steamer and let it boil.
Pour ladle full of The batter on a greased thali, sprinkle some chili powder and steam it for 12 minutes over medium to high heat. (time depends on the amount of batter you use) Don't open it for the first 10 minutes. Insert a toothpick or knife to check if it is done or not. If toothpick or knife comes out clean, it is done. If it's not then let it cook for 5 more minutes.
Heat the oil in a pan. Add mustard seeds and sesame seeds. Let it splutter. Add curry leaves, green chilies, and cilantro. Mix them well and saute it for 1 minute on medium flame.
Pour the tempering over the prepared dhoklas and spread it evenly.
Quinoa, Oats and Lentil Dhokla is ready. Serve it with oil and chili powder or with green chutney and sweet chutney.