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side view of vegetarian wild rice soup with mushrooms

Mushroom-Lovers Wild Rice Soup (Instant Pot)

  • Author: Katie Allen
  • Prep Time: 10
  • Cook Time: 50
  • Total Time: 1 hour
  • Yield: 6 1x


Thick, creamy and rich! This one-pot mushroom and wild rice soup is so hearty, you won’t miss the meat. It’s also easy, plant-based and family-friendly. Whip this up for a family meal or potluck. Don’t forget a crusty baguette ready to dunk in the risotto-like texture.



  • 2 Tbsp olive oil
  • 1/2 onion diced
  • 2 carrots, sliced
  • 1 cup wild rice
  • 3 cups mushrooms, sliced (I used shiitake and crimini)
  • 1 tsp celery salt
  • 1/2 tsp thyme (fresh or dried)
  • 1/2 tsp rosemary (fresh or dried)
  • 4 cups vegetable broth
  • 2 Tbsp corn starch
  • 1/4 cup water
  • 1/4 cup cream cheese (non-dairy, for vegan)


  1. Set instant pot to “saute” mode.
  2. Add olive oil to pot and allow to heat for 1-2 minutes.
  3. Add onion. Stir. Allow to soften for 3 minutes.
  4. Add carrot, wild rice, mushrooms, seasonings and broth. Stir to combine.
  5. Cancel “saute” mode. Lock the lid. Turn valve knob to “sealing”.
  6. Set Instant Pot to “manual” or “pressure cook”. Increase time to 45 minutes.
  7. It will take about 10 minutes to reach pressure. Then it will count down 45 minutes.
  8. When it has completed 45 minutes and beeps, use a cooking utensil to push the valve knob to “venting”. After 1-2 minutes, the pin will drop and click. It’s now safe to remove the lid.
  9. In a small bowl, whisk water into cornstarch until well combined. 
  10. Pour this slurry into the soup and continue whisking gently.
  11. Add cream cheese to the soup. Stir.
  12. Set Instant Pot to “saute” again. Allow the soup to come to a gentle boil for a minute.
  13. Shut off the Instant Pot.
  14. Serve with a crusty baguette!


Vegetarian: Recipe is vegetarian.

Vegan: Recipe can be vegan by using dairy-free cream cheese or omitting cream cheese.

Gluten-Free: Recipe is presumed to be gluten-free, however please read your cream cheese ingredients list to confirm.

  • Category: Soup
  • Method: Instant Pot
  • Cuisine: American

Keywords: instant pot soup, mushroom wild rice soup, vegetarian instant pot