Turn the Instant Pot on Sauté. When it is hot, add oil. To the hot oil, add cumin seeds and turmeric and allow them to sizzle for 10 seconds. Press CANCEL.
Add onion, peas and carrots, couscous, salt and garam masala. Add water and stir well.
Close the lid immediately, and select PRESSURE COOK on HIGH for 3 minutes. Allow the pot to rest undisturbed for 5 minutes, and then release all pressure immediately.
Mix in chopped red onion and feta cheese and serve.
NOTES
Wait until serving to add the cheese and onion for best results.
The Couscous will continue to absorb water for a while after you cook it. So if you open the pot and see a little water left in there, just let the pasta sit in the pot for a few minutes.
Note that this recipe uses very little water. If you are using an 8 quart pressure cooker, you may want to double the recipe and increase water to 1.75 cups.
If your seal is at all faulty, and you find the pressure cooker hissing steam but not coming up to pressure, thump the top of the lid. Often this is enough to make the pressure valve pop up.