Heat oil in a large soup pot. When oil is warm add in celery, carrots and onion. Saute until soft.
Next, add in the minced garlic and chopped mushrooms. Stir and saute for 3 minutes. Then slowly add flour while stirring. Everything in the pot should be lightly and evenly coated with flour.
Add the veggie broth and water to the pot.
Pour in the cubed and peeled potatoes to the pot mixture. Turn up the heat to a medium high heat.
Add in the fresh herbs and liquid smoke. Bring mixture to a boil, then turn down and simmer for 30 minutes or until potatoes are tender.
(Optional: Take 1-2 cups of stew mixture and blend in a blender until smooth, then return to pot.)
Pour in the frozen peas, stir and let the stew rest for 5 minutes. Enjoy!