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Stuffed Portobello Mushrooms with Walnuts

Meaty portobello mushrooms filled with spinach, garlic, walnuts and goat's cheese, baked until golden.

Serves 235 minutesGluten-freeKetoDairy-freeRich in B vitamins and omega-3

Ingredients

  • 4 large portobello mushrooms, stalks removed and chopped
  • 2 tbsp olive oil
  • 2 garlic cloves, finely chopped
  • 100 g spinach, chopped
  • 50 g walnuts, chopped
  • 1 tsp fresh thyme leaves
  • Zest of ½ lemon
  • 80 g soft goat's cheese (or 2 tbsp nutritional yeast and 2 tbsp tahini for a plant-based version)
  • 2 tbsp grated Parmesan (optional)
  • Rocket and balsamic vinegar, to serve

Method

  1. Prepare the mushrooms: heat the oven to 200°C (180°C fan). Brush the mushroom caps with 1 tbsp of the oil, season and place gill-side up on a baking tray. Bake for 10 minutes.
  2. Make the filling: heat the remaining oil in a frying pan and cook the chopped stalks and garlic for 3 minutes. Add the spinach and cook until wilted, then stir in the walnuts, thyme and lemon zest. Season.
  3. Stuff: pour off any liquid from the mushrooms. Pile the filling into the caps and top with goat's cheese and Parmesan.
  4. Bake: bake for 12–15 minutes, until golden and bubbling.
  5. Serve: serve on a bed of rocket with a drizzle of balsamic.

Why it's good for you: Portobello mushrooms are satisfying, "meaty" and low in carbohydrate, and contain B vitamins, selenium and potassium. Walnuts are the best nut source of plant omega-3 fats, and are studied for their benefits to the brain and heart.

Good to know: Goat's cheese makes this vegetarian; use the nutritional yeast and tahini swap for a plant-based version.

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