Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Roll out the puff pastry on a lightly floured surface to fit a 9-inch tart pan. Press the pastry into the pan and trim any excess. Prick the bottom with a fork and chill for 15 minutes.
- Heat olive oil in a large skillet over medium heat. Add the onion and cook until softened, about 5 minutes. Add garlic and thyme, cooking for another minute until fragrant.
- Increase heat to medium-high, add mushrooms, and cook until they release their moisture and start to brown, about 10 minutes. Season with salt and pepper.
- Stir in the cooked lentils, walnuts, vegetable broth, and heavy cream. Simmer for 5 minutes until the mixture thickens slightly. Remove from heat and let cool slightly.
- Spread the Gruyere cheese over the bottom of the chilled pastry. Pour the mushroom mixture over the cheese, spreading it evenly.
- Brush the exposed pastry edges with the beaten egg. Bake in the preheated oven for 30-35 minutes, or until the pastry is golden brown and the filling is set.
- Allow the tart to cool for 10 minutes before slicing and serving.
Notes
Chef's Tips:
• For a crispier crust, blind bake the pastry for 10 minutes before adding the filling.
• Avoid overfilling the tart to prevent spillage during baking.
• Serve warm with a side salad for a complete meal.
Food Safety:
• Ensure the tart reaches an internal temperature of 165°F (74°C) for food safety.
• Refrigerate leftovers promptly and consume within 3 days.
