Heat oil in a saute mode in the Instant Pot. Add garlic and onion and cook until translucent.
Then add diced pepper, tomato, raw black beans and all the spices mentioned under seasoning mix. Saute the mixture for 2-3 mins.
Add chicken stock and water.
Cover the instant pot with its lid. Cancel the saute mode and manually set high pressure for 25 min*.
Once the timer is off let pressure release for about 10 min on its own. Then turn the valve to the venting position and release the remaining pressure.
Remove the lid and add finely chopped cilantro.
Serve warm with avocado slices, tortilla chips to make this soup tastier and filling.