As an Amazon Associate we earn from qualifying purchases.
If you’re craving an elegant main dish that won’t leave you missing meat, look no further than a flaky, savory Mushroom Wellington. This version layers sautéed mushrooms with herbs and garlic, all wrapped in buttery puff pastry. It’s visually stunning, surprisingly easy to prepare, and guaranteed to impress dinner guests—whether they’re vegetarian or not.

Ingredients
- 1 tablespoon olive oil
- 1 small onion, finely chopped
- 2 garlic cloves, minced
- 2 cups mixed mushrooms (like cremini or portobello), chopped
- 1 teaspoon fresh thyme leaves
- ½ teaspoon salt
- ¼ teaspoon black pepper
- 1 tablespoon Dijon mustard
- ¼ cup breadcrumbs
- 1 sheet puff pastry, thawed
- 1 egg, beaten (for egg wash, optional)

Instructions
Start by gently heating the olive oil in a skillet over medium heat. Add the onion and cook until it softens, about three minutes. Stir in the minced garlic and continue cooking for another minute, taking care not to let it brown too much.
Add the chopped mushrooms and thyme, then season with salt and pepper. Let the mushrooms release their moisture, stirring occasionally, until the mixture appears dry and slightly golden. Stir in the Dijon mustard and breadcrumbs, combining everything thoroughly. Set this mixture aside to cool a bit.

On a lightly floured surface, roll out the puff pastry just enough to smooth the creases. Spoon the cooled mushroom mixture down the center, leaving space around the edges so you can seal the pastry. Fold one side over the filling, then the other, tucking in the ends like an envelope. Gently press the edges to seal, and place the seam side down on a parchment-lined baking sheet.
If you want a lovely golden finish, lightly brush the beaten egg across the top of the pastry. Bake in a preheated 400°F (200°C) oven for about 20–25 minutes, or until the pastry is puffed and deeply golden.
Allow the Wellington to rest for five minutes before slicing. Serve warm, perhaps alongside roasted vegetables or a light salad to round out the meal.
This Mushroom Wellington is a showstopper for anyone looking to enjoy a hearty vegetarian centerpiece. Its crisp pastry layer and flavorful filling make it a great option for holiday gatherings, date nights, or anytime you want an impressive, meatless main. Feel free to swap in your favorite seasonal mushrooms, add a splash of sherry for extra richness, or use a vegan puff pastry and a dairy-free wash if you’re keeping it plant-based. However you choose to make it, this dish is sure to become a reliable go-to for cozy, crowd-pleasing meals.