Mushroom Wellington

Learn how to make these best Mushroom Wellington!

This show stopping vegetarian main course is the perfect entrée for special occasions, like Thanksgiving, Christmas, or anytime of year!

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Are you looking for a vegetarian entree that will wow your holiday guests?

Then, you'll want to make this amazing Mushroom Wellington!

This showstopping main course is perfect for Thanksgiving, Christmas, New Years Eve, Valentine's Day, dinner parties. Basically any festive occasion.

Between its mouthwatering flavor and beautiful looks, this is one recipe that's guaranteed to impress all your holiday guests!

About the Recipe

When it comes to holiday get togethers, I'm usually the only vegetarian there. And if someone else is doing the cooking, I'm more than happy eating the veggie sides. They're usually the best part of the meal anyway!

If I'm making the dinner though, all bets are off. I love creating an impressive veg entree that vegetarians and meat eaters will both love ... like this Mushroom Wellington.

This beautiful recipe is basically a vegetarian Beef Wellington, which is a popular British dish. For my recipe, I've replaced the beef and pâté found in that classic with tons hearty mushrooms wrapped in puff pastry.

If you're looking for vegetarian holiday recipes, you have to try this tasty recipe. It's delicious, looks amazing, and feels super festive ... exactly what holiday cooking is all about!

Ingredients

This recipe uses simple to find, yet delicious ingredients to create an impressive entree! Here's what you'll need:

• Extra Virgin Olive Oil
• Portabella Mushrooms
• White Mushrooms
• Onions + Shallots
• Fresh Garlic
• Fresh Thyme
• Dijon Mustard
• Puff Pastry
• Egg Yolk
• Salt (I prefer Kosher salt) and Pepper

Make sure to use large portabella mushrooms, about 5-inches across. If you can't find the right size, just purchase extra smaller mushrooms. You can replace the white mushrooms with brown mushrooms, or even wild mushrooms, if you prefer.

Puff pastry is usually found in the freezer section. It needs to stay chilled, so defrost it in the refrigerator overnight before using.

Vegan Option

This recipe is vegetarian, but it's super easy to veganize. First of all, you'll need a vegan puff pastry. The Pepperidge Farms Puff Pastry I used is already vegan. It's easy to find, and I'd highly recommend it.

Then before baking, you'll want to brush the Wellington with a vegan butter replacement or with olive oil, instead of the egg yolk.

How to Make a Mushroom Wellington

Let's talk about how to make gorgeous puff pastry recipe! This recipe is easier than you'd think, although there are a few steps involved. I'm going to break it down for you step-by-step, but here's the basic plan:

1. Roast portabella mushrooms, then brush with Dijon mustard.
2. Saute diced onions, shallots, and white mushrooms. Season with garlic and fresh thyme.
3. Top a sheet of puff pastry with onion-mushroom mixture, then the portabellas.
4. Fold the pastry around the mushroom filling, then bake until golden.

Not too hard right? You can do it!

Preparing the Mushrooms

The first thing you need to do is cook the mushrooms. Start by removing the stems from the portabella mushrooms, then use a spoon to scrape the gills from inside the caps.

Brush the portabella mushrooms on both sides with olive oil, then roast for 10 minutes, gill-side up. After 10 minutes, flip the mushrooms over. Roast the mushrooms for an additional 15 minutes or until any liquid they've released has evaporated ... they should look dry on the outside.

Remove the portabellas from the oven, then season them to taste on both sides with salt and pepper. Brush the mushrooms with a little Dijon mustard, then set them aside to cool.

While the portabellas are roasting, you'll work on the other part of the filling. You'll start by sauteing onions and shallots in olive oil.

Once the onion mixture has started to brown, you're going to stir in a ton of diced white mushrooms ... a pound and a half, to be precise. Don't worry if this seems like too much, the mushrooms will reduce in size as they cook.

Cook these mushrooms until any liquid they've released has totally evaporated, and they are starting to brown. If you'd like to speed things along a bit, turn up the heat to medium-high once you add the diced mushrooms.

You'll saute the mushrooms with a little garlic, then remove them from the heat and stir in fresh thyme. Season everything to taste with salt and pepper, then set the mushrooms aside to cool.

Assembling the Recipe

Puff pastry is not that hard to work with, but it must remain chilled. You'll want to work as quickly as possible so the dough doesn't warm up. Your filling should also be cool, so make sure to let all those mushrooms cool to room temp before proceeding.

This recipe uses two sheets of puff pastry (and makes two Wellingtons), and you're going to work with one sheet  at a time.

Here's how to assemble everything:

1. Remove one sheet of puff pastry from the refrigerator, and place it on a lightly floured board or piece of parchment paper. (I like using parchment paper, because you can use the paper to help fold over the dough and there's less clean up.)
2. Sprinkle the top of the dough with a little more flour, then using a rolling pin, roll it out to about 10 x 12-inches. Press together any seams that have split apart.
3. Spread half of the onion-mushroom mixture down the center of puff pastry, leaving a ½-inch border on either end. Top this mixture with 2 portabella mushrooms.
4. Fold one side of the puff pastry over the mushroom filling, then fold the other side of the pastry over that. Turn the ½-inch border under, and pinch together any seams.
5. Place the Wellington seam-side down on a baking sheet, then repeat this process with the remaining ingredients.

Scoring the Puff Pastry

Next, you're going to brush the pastry with an egg yolk-water mixture. This will help them get that beautiful golden color as they bake.

Then, use a really sharp knife to score a pattern in the puff pastry. Use a light touch and try not to cut all the way through the dough.

I created two different designs:

• For the crosshatch pattern (on the left below): I scored diagonal lines all going in one direction. Then, I crossed over them with diagonal lines going in the other direction. This simple pattern ended up being my favorite design.
• For the herringbone pattern (on the right below): I scored three vertical lines in the pastry first, dividing the dough into four sections. Then, I scored diagonal lines in each section, making sure the lines in the neighboring sections met in the middle. If I were to do this again, I would continue the herringbone pattern on the side of the dough.
• Once the Wellingtons are scored, you'll bake them until they're puffed up and deep golden brown.

Don't those Mushroom Wellington look gorgeous? I especially love how they look on a the platter surrounded by roasted vegetables.

This vegetarian recipe tastes as good as it looks, making it perfect for special occasions. Serve it for Christmas, Thanksgiving, New Year's Eve, Valentine's Day ... basically anytime you want to impress your guests.

If you're serving this recipe at a dinner party, make sure to cut it at the table (use a serrated knife) ... that way everyone can appreciate your amazing handiwork!

What to Serve with Mushroom Wellington

Before we get to the recipe, I want to share a delicious vegetarian meal plan with you! Holidays can be kind of tricky for vegetarians, and these are dishes anyone would love, even meat eaters.

So whether you are vegetarian, or there’s a vegetarian attending your Thanksgiving or Christmas dinner, you'll love these recipes!

You can get all the recipes here:

• Dad’s Classic Bread Stuffing ... this Mushroom Stuffing would also be delish!
• Mom’s Cream Cheese Mashed Potatoes or try these Garlic Mashed Potatoes.
• Mushroom Gravy
• Roasted Vegetables ... these Roasted Root Vegetables would be tasty, too.
• Cranberry Orange Sauce

Related Recipes

Looking for more impressive vegetarian entrées? Try one of these recipes next:

• Fettuccine Alfredo with Asparagus and Sun Dried Tomatoes
• Butternut Squash Lasagna with Kale and Mushrooms
• Instant Pot Stuffed Peppers
• Vegetable Pie with Phyllo
• Creamy Mushroom Strudel
• Moroccan Spiced Vegetarian Cabbage Rolls
• Lemony Pasta Primavera with Roasted Vegetables

What is your favorite vegetarian entree for the holidays?