To add quinoa: add 1/2 cup quinoa and 1 cup water. Will take about 20 minutes on stove top to fully cook quinoa. No additional time i Instant Pot is needed.
To add pasta: add 1 cup pasta and 1 cup water. Cook until pasta reaches desired firmness. Add additional water if soup becomes too thick. Typically pasta can cook in the Instant Pot when the pressure is set to cook for about half the time recommended on the package. However if your vegetables are still partially frozen it may take longer for the pot to come to pressure and overcook your pasta, so proceed at your own risk here!
I used a 32 oz jar of Organic Classico sauce I got at Costco. 24 oz jars are more common and should work just fine. Add additional basil and/or oregano if desired.