Easy Vegan Mushroom Wellington Recipe

This easy mushroom vegan Wellington is a showstopping main dish that’s surprisingly simple to make. Filled with savoury mushrooms, vegetables and walnuts, then wrapped in flaky puff pastry, it’s perfect for Christmas, Thanksgiving or any special dinner.

Although a traditional beef Wellington looks complicated, this vegan version is much more approachable. The filling comes together in around 10 minutes before it’s wrapped in ready-made puff pastry and baked until beautifully golden.

Don’t let puff pastry intimidate you. With the step-by-step photos and simple instructions below, you’ll be serving an impressive vegan Wellington that’s crisp, flavourful and guaranteed to wow your family and friends.

This dish has gotten ooo’s and ahh’s from literally every single person I have served it to. Just wait and see!

If you’re looking for an easy vegan Wellington recipe for the holidays, you’ve come to the right place. It’s an elegant vegan holiday main dish that’s surprisingly easy to prepare.

Why You’ll Love This Vegan Mushroom Wellington

• It is an impressive holiday main dish. If you want an easy and showstopping dish, this vegen Christmas Wellington is perfect for any holiday gathering.
• Puff pastry is easy to use but looks fancy. The puff pastry is easy to work with even for beginners. The look of it elevates the plant-based Wellington!
• Kids love it! Even picky eaters often enjoy this recipe. Wrapping the filling in flaky puff pastry makes it a fun way to serve plenty of vegetables.
• It can be made ahead of time. This vegan beef Wellington is ideal for meal prepping. Make it a couple of days before a family or holiday gathering for a stress-free experience.

This is the ultimate EASY main dish for your Vegan Thanksgiving or Vegan Christmas dinner! Despite its impressive appearance, this easy vegan Wellington comes together with simple ingredients and straightforward steps.

Where To Find Vegan Puff Pastry

When I was making this Wellington vegan, I first sent my mom to Whole Foods to get vegan puff pastry.

Whole Foods had one option and it had butter in it. Needless to say, it wasn’t vegan and was pricey!

Then she headed to Walmart and there it was! Accidentally vegan puff pastry for $4 with two sheets. This recipe only calls for one.

You can usually find vegan puff pastry at your local grocery store by checking the ingredients. Pepperidge Farm is the easiest brand to find and is the one I used for this recipe.

Be sure to buy puff pastry rather than phyllo (filo) pastry. Although they’re often sold in the same freezer section, they’re very different products and aren’t interchangeable in this recipe.

Don’t be afraid of working with puff pastry. I expected it to be difficult, but it was much easier than I imagined and incredibly forgiving to work with.

How To Make The Vegan Mushroom Wellington Filling

There are two parts to this recipe. First, you make the filling which takes no more than 10 minutes.

Then you stuff the puff pastry and bake.

In order to make the filling for the vegetarian Wellington recipe, you are going to want to finely chop your mushrooms, carrots, celery, and green onions.

While I do consider this a vegan mushroom Wellington, you do not use a giant portobello mushroom like other recipes do. No shame to other recipes, I just prefer a different texture for my vegan mushroom Wellington, and cutting into a huge chunk of portobello just isn’t it.

Start by sauteing your carrots, celery, and onions until fragrant, and then add in the mushrooms.

Mushrooms will release a lot of liquid and if you don’t cook them correctly, your meat-free Wellington will be soggy and that is just no good.

Here is what you do!

Put the mushrooms in your pan and set a timer for 5 minutes. Constantly stir until the mushrooms are soft and fully release their moisture.

The pan should be dry!

This happens quickly and is like magic, but set a timer so you know you have done it enough. The transition usually occurs for me at the 4-minute mark. At this point, you can shut off the timer and you are finished!

It is going to surprise you, but trust the process as it really does work!

Once the mushrooms are dry, go ahead and add your spinach and cook until the spinach is wilted, which is usually only 1-2 minutes! Spinach will cook down really small.

Finally, once it is all cooked and seasoned, you will stir in your ground walnuts.

You can grind your walnuts in a food processor or small chopper. You want a fine meal, almost like flour or flax meal, which you can use if you want a nut-free Wellington.

Using a spoon, stir to combine the cooked veggie mixture and the walnuts until combined throughout.

Now, you are going to prepare your puff pastry! See how easy that was?

Just 10 minutes and a magic trick of letting your mushrooms release their moisture and you have the stunning filling for a meat-free Wellington right at your fingertips.

Before moving on, make sure the filling has cooled completely and isn’t overly wet. It should be rich and moist, with most of the liquid cooked away. Wrapping warm or watery filling in the pastry can lead to a soggy Wellington.

How To Wrap A Vegan Wellington

Preparing the puff pastry is so easy! Don’t be scared now!

First, you are going to want to lay the thawed sheet of puff pastry down on a floured surface.

I put mine on a piece of parchment paper that I floured and then put another piece of parchment over the top for rolling.

You want your puff pastry to be rolled out to about a 10×13 size. This is considerably larger than the size the sheet comes in.

It is big enough to hold your filling, but not too large for the puff pastry to rip while you are rolling it.

First, get your vegan mushroom Wellington filling and pour it into the center of your puff pastry. Try not to overfill the pastry, as this can make it difficult to seal and may cause the filling to leak during baking.

I used my clean hands to help shape it into the log that I wanted.

If for whatever reason your puff pastry is too small or you made too much filling, you can simply use your hands or a spoon to scoop and set the filling aside.

You can always modify and take out the filling or quickly cook up more if you need more, depending on how large you rolled out your puff pastry.

Next, simply tightly fold one side of the puff pastry over and then fold the other side on top of it like you are wrapping a package.

The trick to getting puff pastry to stick is to wet the “seam” in order to seal it.

I use water. Simply wet your fingers and then dab them along the seal of the dairy-free Wellington to seal the puff pastry around it.

Next, simply take the top and bottom ends and fold them up onto the log roll. This is where you are for sure going to want to use liquid to hold it together.

The puff pastry is very springy and will want to unwrap your vegan wellington which is why you can encourage it to stay shut by dabbing a little bit of water on the seams on the top and bottom.

If you find that your ends are too long or thick, you can always cut them to a smaller size and then fold them over.

Now, gently flip your vegan Wellington over, and tada! A beautiful design!

You can use your hands to plump it up and make it super round and log-like if you want.

Now, you are going to go ahead and brush your vegan Wellington with “egg wash” which for vegans is melted Vegan Butter or oil. I actually have a whole post on the Best-Ever Vegan Egg Wash!

You can also brush it with aquafaba and milk. Aquafaba is the liquid from a can of chickpeas.

Personally, I love using melted vegan butter as a pastry wash which is exactly what I did for this recipe.

Finally, it is time to make the “vents” in the top of your vegetarian Wellington with mushrooms. You want to do this AFTER you brush on the vegan egg wash, or whatever you decide to use, not before.

Simply take your biggest and sharpest knife and cut a few lines one way and then turn and cut a few lines the opposite way to form an X shape. These vents allow steam to escape during baking, helping the pastry cook evenly and reducing the chance of a soggy crust.

That is all you have to do! Pop the easy veggie Wellington in the oven for 35-45 minutes at 400F or until the top is golden brown. For an even crispier base, place the Wellington on a preheated baking tray or baking stone before baking. This is optional, but it can help the bottom pastry cook more evenly.

Bake until the pastry is deep golden brown, crisp and flaky, then allow the Wellington to rest for 5–10 minutes before slicing. Resting helps the filling firm up slightly, making it much easier to serve neat slices.

Can This Vegan Wellington Recipe Be Made Ahead?

Yes! This vegan mushroom Wellington is a great make-ahead recipe, making it perfect for Christmas, Thanksgiving and other special occasions.

You have two options:

• Prepare the filling up to 2 days in advance, then store it covered in the refrigerator until you’re ready to assemble the Wellington.
• Assemble the entire Wellington ahead of time, wrap it tightly and refrigerate for up to 24 hours before baking. When you’re ready to serve, brush with your glaze if needed and bake as directed.

For the crispiest pastry, I recommend baking the Wellington just before serving rather than baking and reheating it.

Troubleshooting Your Vegan Wellington

Why is my Wellington soggy?

The most common cause is wrapping the filling while it’s still warm or too wet. Allow the filling to cool completely before assembling, and cook off any excess liquid before removing it from the heat. For an even crispier base, bake the Wellington on a preheated baking tray or baking stone.

Why did my pastry split?

Small cracks are completely normal as puff pastry expands during baking. To help prevent larger splits, avoid overfilling the pastry and make sure the seams are sealed well before baking.

Why is the filling leaking out?

Overfilling the pastry or leaving gaps in the seams can allow the filling to escape. Leave a border around the filling when assembling and pinch the edges together firmly before baking.

Why is my Wellington difficult to slice?

Let the Wellington rest for 5–10 minutes after baking. This gives the filling time to firm up slightly and makes it much easier to cut neat slices.

Serving this for a holiday meal? My rich and flavourful Vegan Brown Gravy is the perfect finishing touch and pairs beautifully with this Wellington.

Ingredient Substitutions

One of the things I love about this vegan mushroom Wellington is how easy it is to adapt. Here are a few simple substitutions to help you make it your own.

Can I make it nut-free?

Ground walnuts help bind the filling together and add a rich, savoury flavour. If you’d like to make a nut-free version, ground seeds may work as a substitute, although I haven’t tested this myself.

Can I use different mushrooms?

Absolutely! Chestnut, cremini, button or portobello mushrooms all work well. A mixture of mushrooms adds even more flavour.

Can I swap the vegetables?

Yes. While I recommend keeping the mushrooms as the main ingredient, you can easily swap or add vegetables depending on what you have available.

Do I have to use Worcestershire sauce?

Traditional Worcestershire sauce contains anchovies and isn’t vegan, so make sure you choose a vegan version. If you can’t find one, you can leave it out or experiment with a splash of soy sauce or tamari for extra savoury flavour.

Frequently Asked Questions

Can I make this vegan mushroom Wellington ahead of time?

Yes! You can prepare the filling up to two days in advance or assemble the Wellington up to 24 hours before baking. For the crispiest pastry, I recommend baking it just before serving.

Can I freeze vegan mushroom Wellington?

I haven’t personally tested freezing this recipe, so I can’t guarantee the results.

Why is my vegan Wellington soggy?

Warm filling or excess moisture can make the pastry soggy. Allow the filling to cool completely before wrapping it in the puff pastry, and cook off any excess liquid from the mushrooms before assembling.

Can I use phyllo (filo) pastry instead of puff pastry?

No. Puff pastry and phyllo pastry are very different and aren’t interchangeable in this recipe. Puff pastry creates the flaky, golden layers that make this Wellington so delicious.

What should I serve with vegan mushroom Wellington?

My favourite way to serve this Wellington is with Vegan Brown Gravy, mashed potatoes and roasted vegetables for a complete holiday meal.

Can I make this vegan Wellington nut-free?

Ground walnuts help bind the filling together, but ground seeds may work as a substitute. I haven’t personally tested a nut-free version, so I can’t guarantee the results.

This vegan Wellington is the perfect vegan holiday main for Christmas, Thanksgiving or any special celebration.