Step 1

In the insert pot of the Instant Pot, combine chicken pieces, broth, garlic powder, onion powder, and black pepper.

Step 2

Add the frozen tortellini on top and close the lid, setting the vent to the sealed position.

Step 3

Select a cook time of 1 minute at high pressure. When the cook time is complete, allow a 5 minute natural released, followed by a quick release of remaining pressure.

Step 4

While chicken is cooking, combine milk, butter, cream cheese, flour, and grated parmesan cheese in a large measuring cup. Use an immersion blender to blend the ingredients together until smooth (alternatively, you can use a food processor or normal blender to combine).

Step 5

When the pressure has released and the valve has dropped, carefully remove the lid. Stir in the milk mixture until combined.

Step 6

Stir in frozen peas (if using) and allow to warm through. Let stand for a few minutes before serving--the sauce will continue to thicken.