Looking for a delicious plant-based centerpiece for your holiday table? This Vegan Mushroom Wellington combines savory mushrooms, hearty lentils, toasted walnuts, and fresh herbs, all wrapped in golden, flaky puff pastry. Served with a rich homemade mushroom gravy, this satisfying main dish is perfect for Thanksgiving, Christmas, or any special gathering. Inspired by the traditional Beef Wellington, this vegan version delivers plenty of savory flavor without the meat. The mushroom and lentil filling holds together beautifully when sliced, making it an impressive addition to your holiday menu.
What Is a Mushroom Wellington?
A Mushroom Wellington is a vegetarian variation of the classic Beef Wellington, traditionally made by wrapping a savory filling in puff pastry and baking it until golden brown. This vegan mushroom Wellington recipe uses lentils, mushrooms, walnuts, and aromatic herbs to create a rich, satisfying filling. Miso paste and nutritional yeast add depth of flavor, while vegan puff pastry creates that signature flaky crust. It’s a wonderful alternative to traditional holiday roasts and pairs perfectly with your favorite seasonal side dishes.
Ingredients
Mushroom-Lentil Filling
- 1/3 cup dried brown or green lentils (about 6 oz cooked)
- 1 tablespoon olive oil
- 1 small yellow onion, chopped
- 6 garlic cloves, chopped
- 8 oz mushrooms, finely chopped (shiitake and cremini work well)
- 1 tablespoon fresh thyme leaves or 1 teaspoon dried thyme
- 1 tablespoon chopped fresh rosemary
- 1 teaspoon sweet or hot paprika (optional)
- Freshly cracked black pepper
- 1 teaspoon kosher salt, plus more to taste
- 1 cup walnuts, toasted and finely ground
- 2 tablespoons white or yellow miso paste
- 2 tablespoons nutritional yeast
- 1 tablespoon tomato paste
- 1 tablespoon fresh lemon juice
- 1/4 cup panko breadcrumbs
- 1/4 cup all-purpose flour
Vegan Puff Pastry
- 1 sheet vegan puff pastry, thawed
- Flour, for rolling
- 1 tablespoon unsweetened plant-based milk
- 1 tablespoon olive oil or neutral oil
- Coarse or flaky sea salt
Vegan Mushroom Gravy
- 1 tablespoon olive oil
- 1 small yellow onion, diced
- 3 cloves garlic, minced
- 1 tablespoon finely chopped fresh thyme leaves (or 1 teaspoon dried thyme)
- 1 tablespoon finely chopped fresh rosemary leaves
- 2 cups (approximately 150–200 g) chopped cremini mushrooms
- Freshly cracked black pepper, to taste
- 1/2 teaspoon kosher salt
- 3 tablespoons arrowroot powder or cornstarch
- 1 1/2 cups (360 mL) low-sodium vegetable broth
- 1 tablespoon white or yellow miso paste
How to Make Vegan Mushroom Wellington
1. Cook the Lentils
Instant Pot: Combine the lentils with 2/3 cup water and a pinch of salt. Cook on high pressure for 6 minutes, then allow the pressure to release naturally for 10 minutes.
Stovetop: Simmer the lentils in water for 20–30 minutes until tender but not mushy. Drain.
Transfer the cooked lentils to a bowl and refrigerate until cooled.
2. Prepare the Mushroom Mixture
Finely chop the mushrooms using a food processor or by hand.
Heat olive oil in a large pan over medium-high heat. Add the onion and a pinch of salt, cooking for 7–10 minutes until golden.
Add the garlic, mushrooms, thyme, rosemary, paprika, and black pepper. Cook for approximately 5 minutes, until the mushrooms soften and their liquid evaporates.
Season with salt, cook for another minute, then refrigerate the mixture until cooled.
3. Toast the Walnuts
Toast the walnuts until fragrant. Allow them to cool slightly, then pulse in a food processor until finely ground. Set aside.
4. Make the Mushroom Wellington Filling
Preheat the oven to 375°F (190°C).
Combine the cooled lentils and mushroom mixture with the miso paste, nutritional yeast, tomato paste, and lemon juice in a food processor. Blend until mostly smooth.
Add the ground walnuts, breadcrumbs, and flour. Blend until fully combined.
If the filling is still warm, refrigerate for 15–30 minutes until firm enough to shape.
5. Shape and Bake the Filling
Line a baking sheet with parchment paper.
Shape the mushroom and lentil filling into a log approximately 7 inches long and no more than 1 inch tall.
Bake for 35 minutes until firm and lightly browned. Allow the filling to cool completely before wrapping it in pastry.
6. Prepare the Vegan Puff Pastry
Lightly flour a work surface and allow the puff pastry to thaw for 20–30 minutes.
Roll the pastry into a 9 x 13-inch rectangle. Line a baking sheet with parchment paper.
7. Assemble the Mushroom Wellington
Place the cooled mushroom-lentil filling in the center of the puff pastry.
Cut 1-inch strips along both sides of the pastry.
Whisk together the plant-based milk and oil to create a vegan egg wash. Brush the pastry strips with the mixture, then braid them over the filling, sealing the ends.
Prick the pastry with a fork, brush with the remaining vegan egg wash, and sprinkle with flaky sea salt.
Refrigerate the assembled Wellington for 15–20 minutes before baking.
8. Bake Until Golden Brown
Bake at 375°F (190°C) for 25 minutes.
Increase the oven temperature to 425°F (218°C) and bake for another 10 minutes, until the puff pastry is golden brown and beautifully puffed.
9. Slice and Serve
Allow the vegan mushroom Wellington to cool for 10 minutes before slicing.
Serve warm with homemade mushroom gravy and your favorite holiday side dishes.
How to Make Vegan Mushroom Gravy
This savory mushroom gravy is the perfect finishing touch for your vegan Wellington recipe.
- Heat the olive oil in a large frying pan over medium-high heat. Add the onion and cook for approximately 4 minutes until softened.
- Add the garlic, mushrooms, thyme, rosemary, and black pepper. Cook until the mushrooms reduce in volume and most of their liquid evaporates. Add the kosher salt and cook for another minute.
- Sprinkle in the arrowroot powder or cornstarch and whisk constantly for 1 minute to coat the mushrooms.
- Pour in the vegetable broth and bring to a simmer, whisking until thickened, approximately 2 minutes.
- Transfer the gravy to a blender, add the miso paste, and blend until creamy and smooth.
- Return the gravy to the pan and heat over low heat for 3–5 minutes to thicken further. Taste and adjust the seasonings as needed.
Store leftover cooled gravy in an airtight container in the refrigerator for 4–5 days or freeze for up to one month.
What to Serve with Vegan Mushroom Wellington
Wondering what to serve with mushroom Wellington? This hearty main dish pairs beautifully with traditional holiday favorites. Try serving it alongside roasted Brussels sprouts, garlic mashed potatoes, glazed carrots, green beans, or a fresh seasonal salad. For a complete plant-based holiday meal, pair this Wellington with other festive dishes featured in our Vegan Holiday Feast: Four Recipes for Your Table.
Tips for Making the Best Mushroom Wellington
Cook off excess moisture. Mushrooms release water as they cook. Allowing that moisture to evaporate helps prevent the filling from becoming too soft and keeps the puff pastry from getting soggy.
Cool the filling completely. Wrapping warm filling in puff pastry can soften the dough and make it more difficult to work with.
Don’t skip the chilling time. Refrigerating the assembled Wellington before baking helps the pastry maintain its shape.
Use vegan puff pastry. Check the ingredient label to ensure your pastry is made without butter or other animal-derived ingredients.
Let it rest before slicing. Allowing the Wellington to cool for 10 minutes makes it easier to cut into neat slices.
Frequently Asked Questions
Can You Make Mushroom Wellington Ahead of Time?
Yes! Several components of this vegan mushroom Wellington recipe can be prepared in advance. The lentils and mushroom filling can be cooked ahead of time and refrigerated. The baked filling should be completely cooled before wrapping it in puff pastry. For the best pastry texture, assemble and bake the Wellington closer to serving time.
What Makes This Wellington Vegan?
Traditional Beef Wellington contains meat and often butter-based puff pastry. This plant-based version replaces the beef with mushrooms, lentils, and walnuts. Using vegan puff pastry and plant-based milk keeps the recipe free of animal-derived ingredients while maintaining the savory filling and flaky crust of a traditional Wellington.
What Mushrooms Work Best for Mushroom Wellington?
Cremini and shiitake mushrooms are excellent choices for this recipe. Cremini mushrooms provide a rich, earthy flavor, while shiitake mushrooms contribute additional savory depth. Finely chopping the mushrooms helps create a filling that holds together when sliced.
What Can I Serve with Vegan Wellington for Christmas Dinner?
Roasted vegetables, mashed potatoes, cranberry sauce, and seasonal salads all complement the savory mushroom filling. A generous spoonful of vegan mushroom gravy makes the meal especially comforting.
Keep Cookin’ with Oryana
Looking for more inspiration for your next holiday gathering? Explore more plant-based recipes, seasonal favorites, and comforting dishes at oryana.coop. Find the ingredients for this vegan mushroom Wellington at either Oryana location in Traverse City.
Photography and Recipe adapted from Rainbow Plant Life
