Press SAUTE on the Instant Pot. Add oil (or ghee), and once it's hot, add cumin (jeera). Let them sizzle and crackle. Then add ginger-garlic paste and sauté for a few seconds.
Then add sliced onions and green chili, and sauté for 2-3 minutes until they turn soft and light brown, stirring regularly.
Add mixed vegetables, paneer, mint, coriander leaves, and cook for a minute.
Next, add the rinsed quinoa, biryani masala powder, turmeric powder, red chili powder, salt, and water. Mix everything well, and adjust the seasoning if needed.
Close the Instant Pot with pressure valve to Sealing. Cook on High Pressure for 2 minutes.When the instant pot beeps, Wait for Natural Pressure Release (NPR). Remove the lid away from you, then squeeze some lime juice. Vegetable Quinoa Biryani is ready. Serve with raita or plain yogurt.