Vegan Polenta with Roasted Mushrooms Recipe
Introduction
This vegan polenta with roasted mushrooms is a comforting and flavorful dish perfect for any meal. Creamy polenta pairs beautifully with tender, savory mushrooms seasoned and roasted to perfection. It’s a simple recipe that brings warmth and depth to your dinner table.

Ingredients
- 1 lb oyster mushrooms or baby bella mushrooms (brushed lightly to clean, base removed, sliced into bite-size pieces)
- 1 ½ tablespoons extra virgin olive oil (divided, or rosemary-infused olive oil)
- 1 ½ teaspoons sea salt (divided)
- 1 cup organic polenta (medium to medium-coarse grind)
- ½ teaspoon dried thyme (optional, or 1 teaspoon fresh thyme if desired)
- 2 cups water
- 1 cup vegetable broth
- 1 cup organic soy milk (or cashew milk, plain and unsweetened)
- ¼ teaspoon black pepper
- 1 tablespoon plant-based butter
- 2 tablespoons nutritional yeast
- ½ tablespoon red wine vinegar
- 3 sprigs fresh thyme
- ½ cup vegan Parmesan (grated, optional, not included in calorie count)
Instructions
- Step 1: Preheat your oven to 425°F (220°C).
- Step 2: Grease a baking sheet lightly. Toss the sliced mushrooms with 1 tablespoon of extra virgin olive oil and ½ teaspoon sea salt. Spread them evenly on the baking sheet.
- Step 3: Roast the mushrooms for 20 minutes, flipping and rotating halfway through to ensure even cooking. Use a metal spatula if possible.
- Step 4: About 10 minutes after placing mushrooms in the oven, start the polenta. In a high-sided saucepan, combine the polenta, dried thyme (if using), water, vegetable broth, plant-based milk, 1 teaspoon sea salt, black pepper, plant-based butter, ½ tablespoon olive oil, and nutritional yeast. Bring to a gentle boil.
- Step 5: Stir frequently at the beginning with a wooden spoon to prevent sticking. Reduce heat and simmer, stirring occasionally. Cover the pot if polenta begins sputtering.
- Step 6: Cook polenta until it pulls away from the sides of the pan, about 10–30 minutes depending on your polenta. For most medium-grind polenta, 10–15 minutes is typical. Stir in fresh thyme at the end if using.
- Step 7: Remove the mushrooms from the oven just before they become crispy. Drizzle with red wine vinegar and toss gently to coat.
- Step 8: Taste the polenta and adjust salt as desired. Serve the polenta in bowls topped with the roasted mushrooms and a sprig of fresh thyme.
- Step 9: If you like, add a sprinkle of grated vegan Parmesan for extra flavor.
Tips & Variations
- Try using rosemary-infused olive oil for roasting mushrooms to enhance their earthy flavor.
- Substitute cashew milk if you prefer a creamier texture in the polenta.
- Add sautéed garlic or shallots with the mushrooms for an extra savory touch.
- Top with toasted pine nuts or walnuts for added crunch and richness.
Storage
Store leftover polenta and roasted mushrooms in airtight containers in the refrigerator for up to 3 days. Reheat gently on the stove or in the microwave, adding a splash of plant-based milk or broth to loosen the polenta if it thickens too much.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use instant polenta for this recipe?
Yes, instant polenta will reduce cooking time significantly. Follow package instructions but keep an eye on consistency since it cooks faster than traditional polenta.
Are the mushrooms essential for the dish?
Mushrooms add a savory depth and texture, but you can substitute with other roasted vegetables like zucchini or eggplant if preferred.
PrintVegan Polenta with Roasted Mushrooms Recipe
This vegan polenta with roasted mushrooms recipe features creamy, flavorful polenta cooked with vegetable broth and plant-based milk, topped with perfectly roasted oyster or baby bella mushrooms. Enhanced with herbs, nutritional yeast, and a splash of red wine vinegar, this wholesome and comforting dish is ideal for a cozy vegan meal.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Category: Main Dish
- Method: Baking
- Cuisine: Vegan
- Diet: Vegan
Ingredients
Mushrooms
- 1 lb oyster mushrooms or baby bella mushrooms, cleaned and sliced into bite-size pieces
- 1 tablespoon extra virgin olive oil
- ½ teaspoon sea salt
- ½ tablespoon red wine vinegar
- 3 sprigs fresh thyme
Polenta
- 1 cup organic polenta (medium to medium-coarse grind)
- ½ teaspoon dried thyme (optional)
- 2 cups water
- 1 cup vegetable broth
- 1 cup organic soy milk or cashew milk, plain and unsweetened
- 1 teaspoon sea salt
- ¼ teaspoon black pepper
- 1 tablespoon plant-based butter
- ½ tablespoon extra virgin olive oil
- 2 tablespoons nutritional yeast
Toppings (Optional)
- ½ cup vegan Parmesan, grated (not included in calorie count)
Instructions
- Preheat Oven: Preheat your oven to 425°F to prepare for roasting the mushrooms.
- Prepare Mushrooms: Lightly grease a baking sheet. Toss the cleaned and sliced oyster or baby bella mushrooms with 1 tablespoon extra virgin olive oil and ½ teaspoon sea salt. Spread them evenly on the baking sheet.
- Roast Mushrooms: Place the mushrooms in the preheated oven and roast for 20 minutes. Halfway through, flip and rotate them using a metal spatula to ensure even cooking and prevent sticking.
- Start Polenta: About 10 minutes after placing the mushrooms in the oven, begin making the polenta. In a high-sided saucepan, combine the polenta, dried thyme if using, water, vegetable broth, plant-based milk, 1 teaspoon sea salt, black pepper, plant-based butter, ½ tablespoon olive oil, and nutritional yeast. Bring the mixture to a gentle boil.
- Cook Polenta: Stir frequently at first with a wooden spoon to prevent sticking. Then simmer, stirring occasionally. Cover the pot if the polenta starts sputtering. Continue cooking until the polenta pulls away from the sides of the pan, usually 10 to 15 minutes depending on your polenta. If using fresh thyme, stir it in just before serving.
- Finish Mushrooms: Remove the mushrooms from the oven before they become crispy. Drizzle the red wine vinegar over them and toss gently in the pan to coat.
- Serve: Season the polenta with additional salt to taste if needed. Serve the creamy polenta in bowls, top with the roasted mushrooms, and garnish each bowl with a sprig of fresh thyme. Optionally, sprinkle grated vegan Parmesan on top (not included in nutrition count).
Notes
- For an extra herbal touch, fresh thyme can be stirred into the polenta at the end or used as garnish.
- If you prefer a creamier polenta, adjust liquid amounts slightly to achieve desired consistency.
- Use rosemary-infused olive oil as a flavorful alternative for roasting mushrooms.
- Ensure you do not overcook mushrooms—they should be tender, not crispy.
- Vegan Parmesan is optional but adds a nice savory flavor.
Keywords: vegan polenta, roasted mushrooms, plant-based, dairy-free, creamy polenta, oyster mushrooms, baby bella mushrooms, nutritional yeast, vegan Parmesan

