Open the center of the artichokes and remove the leaves from the center until you see the heart, using a spoon.
In a bowl, mix the quinoa, with the pumpkin seeds, cranberries, dried tomatoes, pepper, salt, and ginger.
Using a spoon, fill the artichokes with the quinoa mix.
Place the stainless steel inner pot inside the Instant Pot®. Put the artichokes inside the bowl and fill with water up to ¾ of the height of the artichokes. Also add water in the center of the artichokes, until the quinoa is covered with water.
Close and lock the Instant Pot® lid. Make sure the steam release handle is turned to Sealing. Press Pressure Cook, pressure level High, and set time to 8 Minutes.
When done, press Cancel. Once all the pressure has been released, open and carefully remove the artichokes with tongs. Serve with vinaigrette.