Instant Pot Mushroom Barley Soup is an easy Slow Cooker recipe! Try this Crockpot Soup is an easy Dinner recipe perfect and the best Comfort Food recipe!
Place onion, carrots, celery, mushrooms and garlic into instant pot. Add broth and water and mix well. Stir in seasonings.
Place the cover onto the instant pot and seal the quick release valve. Set the instant pot to manual, high pressure for 25 minutes. When cooking cycle is finished, quick release the pressure valve and open the lid, spoon out the soup and serve.