Wash quinoa and red lentils separately and soak red lentils alone for about 30 mins and keep aside.
Heat a pressure cooker on medium flame. Add oil, once hot add mustard seeds.
Allow the mustard seeds to crackle, then add cumin seeds, finely chopped garlic, curry leaves and sauté for a few seconds.
Add finely chopped tomatoes, asafoetida, turmeric powder and cook until the tomatoes are softened.
Next add tamarind paste , cook for 2 mins until a bit of tamarind raw flavour is gone. Add Rasam powder or sambar powder (available in Indian stores).
Add washed quinoa, soaked red lentils and salt and mix well.
Measure and add the water to the pressure pan and cover to pressure cook for 3- 4 whistles on medium flame.
Once the pressure is released, remove from the lid and gently mix it in.
Drizzle ghee and Corriander leaves , serve hot with your favourite side dish.