Vegan Stuffed Portobello Mushrooms
These hearty, oven-roasted portobello caps are the kind of plant-based dinner that genuinely satisfies — no meat, no dairy, no compromises. Each mushroom gets pre-roasted until tender, then piled high with a savory filling of quinoa cooked in vegetable broth, creamy white beans, wilted spinach, and tangy sun-dried tomatoes. Nutritional yeast and a squeeze of fresh lemon juice bring a bright, cheesy depth to the filling without a drop of dairy in sight, and a sprinkle of vegan parmesan on top goes golden in the oven for that irresistible finishing touch. The double-roast method — first the caps, then the stuffed mushrooms together — means you get fully tender mushrooms and a lightly golden, cohesive filling rather than a soggy, watery mess. A pinch of red pepper flakes and Italian seasoning woven through the filling keep every bite interesting. This recipe makes four generous servings, so it works beautifully as a weeknight main or an impressive centerpiece for a dinner party where you want to show off without spending all evening in the kitchen. Finish with fresh basil and a wedge of lemon at the table for a little extra brightness.
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Learn more →Ingredients
4 servings
For the mushrooms
- 4 large portobello mushroom caps (about 4–5 inches wide), stems removed and gills scraped
- 3 tbsp olive oil, divided
- ½ tsp salt, divided
- ¼ tsp black pepper, divided
For the filling
- ½ cup dry quinoa, rinsed
- 1 cup vegetable broth
- 1 can (15 oz) white beans, drained and rinsed
- ⅓ cup sun-dried tomatoes (oil-packed), drained and roughly chopped
- 2 cups baby spinach, roughly chopped
- 3 cloves garlic, minced
- 1 tsp dried italian seasoning
- ½ tsp red pepper flakes
- 3 tbsp nutritional yeast
- 1 tbsp lemon juice
For topping
- ¼ cup vegan parmesan, for topping
For serving
- 2 tbsp fresh basil, thinly sliced (optional)
- lemon wedges, for serving (optional)
Instructions
- 1
Preheat the oven to 400°F (205°C). Line a large baking sheet with parchment paper.
- 2
Place the portobello caps gill-side up on the prepared baking sheet. Brush both sides with 2 tablespoons of the olive oil and season with 1/4 teaspoon salt and 1/8 teaspoon black pepper. Roast for 15 minutes, until the caps are just tender and have released most of their liquid. Carefully tip any pooled liquid off the caps and set aside.
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