Place the oil in the Instant Pot on the Saute setting.
Add the onion once the oil is hot and saute two minutes until onions are clear
Add the garlic for one minute.Turn off the saute setting and add in all other ingredients.
Secure the lid and select the stew/soup setting or low pressure for 10 minutes.Natural release.
Puree the soup in batches after it's done in a food processor or blender. I prefer using an immersion blender while the soup is still in the instant pot.
Makes approximately 8 cups of soup.