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A rustic bowl of hearty Irish Vegetarian Stew with lentils, potatoes, carrots, and mushrooms, garnished with parsley, served with bread and red wine.
Layla

Hearty Root & Mushroom Irish Vegetarian Stew

This comforting and robust Irish Vegetarian Stew is packed with traditional root vegetables, savory mushrooms, and a rich, herb-infused broth, perfect for a cozy meal any time of year. A truly satisfying plant-based take on a classic.
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Prep Time 25 minutes
Cook Time 50 minutes
Total Time 1 hour 15 minutes
Servings: 6 servings
Course: Main Course
Cuisine: Irish
Calories: 320
Ingredients Equipment Method Notes

Ingredients
  

For the Stew Base
  • 2 tbsp Olive oil
  • 1 medium Onion diced
  • 3 cloves Garlic minced
  • 1 large Leek white and light green parts, sliced and rinsed
  • 8 oz Cremini mushrooms quartered
  • 2 medium Carrots peeled and thickly sliced
  • 2 stalks Celery thickly sliced
  • 2 medium Parsnips peeled and thickly sliced
  • 4 medium Potatoes e.g., Russet or Yukon Gold, peeled and cut into 1.5-inch chunks
  • 6 cups Vegetable broth
  • 1 cup Guinness Zero 0.0% Alcohol or dark non-alcoholic beer/more broth
  • 1 Bay leaf
  • 1 tbsp Fresh thyme chopped (or 1 tsp dried)
  • 1 tsp Fresh rosemary chopped (or 1/2 tsp dried)
  • 1 tsp Salt or to taste
  • 1/2 tsp Black pepper or to taste
  • 1 tbsp Soy sauce or tamari for umami, optional
For Thickening & Finishing
  • 2 tbsp All-purpose flour or cornstarch slurry: 1 tbsp cornstarch + 2 tbsp cold water
  • 1/4 cup Cold water if using flour
  • 2 tbsp Fresh parsley chopped, for garnish
  • 2 cups Cabbage shredded (optional, added towards the end)

Equipment

  • Large Dutch oven or heavy-bottomed pot
  • Cutting board
  • Sharp knife
  • Measuring cups and spoons

Method
 

Prepare Vegetables
  1. Dice the onion, mince the garlic, slice and rinse the leek, quarter the mushrooms, thickly slice carrots, celery, and parsnips. Peel and cut potatoes into chunks.
Sauté Aromatics and Vegetables
  1. Heat olive oil in a large Dutch oven or heavy-bottomed pot over medium heat. Add diced onion and cook until softened, about 5-7 minutes. Add minced garlic and sliced leeks, cook for another 3-4 minutes until fragrant.
  2. Add quartered mushrooms to the pot and cook, stirring occasionally, until they release their liquid and start to brown, about 5-7 minutes. Stir in carrots, celery, and parsnips, cooking for 3 minutes.
Simmer the Stew
  1. Add the potato chunks, vegetable broth, Guinness Zero (or extra broth), bay leaf, fresh thyme, fresh rosemary, salt, black pepper, and soy sauce (if using). Stir well to combine.
  2. Bring the stew to a boil, then reduce heat to low, cover, and simmer for 30-40 minutes, or until the potatoes and other root vegetables are tender. Stir occasionally to prevent sticking.
Thicken and Finish
  1. In a small bowl, whisk together the flour and cold water to create a slurry. Slowly pour the slurry into the simmering stew while stirring constantly. Cook for another 5-10 minutes, uncovered, until the stew has thickened to your desired consistency. (If using cornstarch, mix 1 tbsp cornstarch with 2 tbsp cold water, then stir into simmering stew and cook for 2-3 minutes).
  2. If using, stir in the shredded cabbage during the last 10 minutes of simmering (before or after thickening).
Serve
  1. Remove the bay leaf. Taste and adjust seasoning as needed. Ladle the hearty stew into bowls and garnish with fresh chopped parsley. Serve hot with crusty bread.

Notes

For an extra depth of flavor, you can roast the mushrooms and parsnips separately before adding them to the stew. Feel free to add other root vegetables like rutabaga or turnip. Store leftovers in an airtight container in the refrigerator for up to 3-4 days; the flavors often deepen overnight! To make this gluten-free, use a cornstarch slurry for thickening instead of flour, or omit thickening entirely for a thinner stew. Ensure your vegetable broth and soy sauce (if using) are gluten-free.