Place Instant Pot on sauté setting  Add canola oil.

Add seasoned chicken breasts, and brown on both sides. This should take 5-6 minutes total.

Add Chicken broth, and scrape the bottom of the pot for any stuck on bits.  Turn the Instant Pot off.

Add the pasta to the Instant Pot (do not stir) and press down with a spatula into the liquid.  The liquid should barely cover the pasta.

Put the lid on the Instant Pot and place the valve on sealing.  Place the Pot on the manual or pressure cooking setting for 3 minutes.

When the cook time is over, do a quick release and remove the lid.

Turn the Instant Pot to saute and begin adding cream cheese, mozzarella, and parmesan cheese.

Add corn starch and stir pasta.  Cook and stir until thickened and seasoned to taste

Enjoy!