Step 1

On Instant Pot, press "saute" button. After 1 minute, add olive oil to IP insert. Wait 1 minute, then add onion and garlic. Saute, stirring often, for 1 minute. Add carrots and celery and saute for 2 minutes. Add diced chicken and Italian seasoning and cook, stirring often, until almost done.

Step 2

Add remaining ingredients, making sure the noodles are just covered with liquid.

Step 3

Cover the IP with lid and set the pressure valve to "sealing" position. Newer models do it on their own.

Step 4

Press "manual" and set the timer to 6 minutes. Make sure your Instant Pot is set to high pressure. The pressure cooker will beep and start coming to pressure, which can take about 12 minutes.

Step 5

When the cooking time is up, press the "cancel/off" button. Let the pressure release naturally for 5 minutes (to let the foam from cooking noodles to fall), then quick release any remaining pressure by switching the valve to venting position.

Step 6

Carefully open the lid, away from your face. Stir the soup. Let cool and serve. Adjust seasoning as needed.