Truffled Mashed Potato-Stuffed Portobellos

Truffled Mashed Potato-Stuffed Portobellos

Recipe Info

  • Recipe Cuisine: Vegan
  • Recipe Category: Mains
  • Tagged: Dairy Free, Gluten Free, Vegan
  • Prep Time:
  • Cook Time:
  • Recipe Yield:


  • 4 large portobello mushrooms
  • 2 tsp. vegan butter (soy-free if necessary)
  • 2 shallots, diced
  • 1 garlic clove, minced
  • 2 tsp. fresh thyme leaves, plus more for garnish
  • Olive oil spray
  • Salt and black pepper to taste
  • 1/2 batch Truffled Mashed Potatoes


  1. Preheat the oven to 375°F. Line a baking sheet with parchment paper or a silicone baking mat.
  2. Set aside the stems of the portobellos and the caps. Cut the stems into 12-inch cubes. In a large frying pan, preferably cast iron, melt the butter over medium heat. Combine the shallots, garlic, mushroom stems, and thyme in a mixing bowl. Cook, stirring occasionally, for about 5 minutes, or until the mushrooms are tender. Take the pan off the heat.
  3. Spray the tops of the portobello caps with olive oil and arrange them on a baking sheet, gill side up. Season with salt and pepper before dividing the stem mixture among them. Top with heaping mounds of mashed potatoes. Bake the mashed potatoes for 20 minutes, or until golden. Garnish with additional thyme leaves and serve immediately.


To dress up this dish, mash the potatoes until very smooth and place them in a pastry bag. As if icing a cupcake, pipe the mashed potatoes into the mushroom caps. Follow the instructions from there.

Recipe Notes

If you haven’t already made the mashed potatoes, do so while the oven heats up.