Keto Mushroom Wellington – Keto & Low Carb Vegetarian Recipes

Gluten Free

Diary Free

Nut Free

Low Carb




This vegetarian mushroom wellington uses a low carb coconut flour pastry for a hearty keto vegetarian main dish. A simple low carb vegetarian dish that can be made ahead too.

Mushrooms make a delicious filling for this vegetarian wellington and I added spinach for additional flavour and a touch of colour. Serve with a side of cranberry sauce and creamy celeriac gratin.

vegetarian mushroom wellington with a coconut flour pastry.

How to make a vegetarian mushroom wellington

A traditional vegetarian wellington uses puff pastry but this low carb version uses a coconut flour and psyllium husk pastry. A dash of flaxseed meal helps give the pastry a wholemeal taste but you can omit it if you wish.

The filling must be cool before assembling the wellington as it would make the pastry soggy if not. You could make the filling ahead and assemble closer to cooking time.

When assembling the wellington make sure that you don’t spread the filling out too much as the rolled out pastry needs to cover the filling completely.

slices of mushroom spinach wellington

To make this keto vegan

You can make this keto mushroom recipe vegan simply by omitting the egg in the pastry and replacing it with additional coconut oil.

Recipe Tips & Suggestions

Add cheese to the filling but I would recommend a fairly hard cheese such as Cheddar. I added Brie to a mushroom wellington and it seems to dissolve into the pastry and was not a success!

Add chopped nuts to the filling for a wellington with crunch. Walnuts would be a great addition to the mushrooms.

For a richer low carb pastry, replace the coconut oil with melted butter.

mushroom spinach wellington

More keto mushroom recipes

Spinach Mushroom Ring

Mushroom Galette

Spinach Stuffed Mushrooms

Creamy Cabbage & Mushrooms

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mushroom wellington

Mushroom Wellington

A vegetarian mushroom wellington made with a low carb coconut flour pastry.

Prep Time 25 mins

Cook Time 50 mins

Pastry resting time 30 mins

Total Time 1 hr 45 mins

Course Main Course

Cuisine Vegetarian

Servings 10 slices

Calories 202 kcal




  • 1 cup coconut flour
  • 1 tablespoon psyllium husk powder
  • 2 tablespoons flaxseed meal I prefer golden
  • 6 tablespoons coconut oil
  • 1 medium egg
  • 1/4 teaspoon xanthan gum
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup boiling water


  • 14 oz mushrooms
  • 1 medium onion peeled and chopped
  • 2 cloves garlic chopped
  • 1 cup spinach, frozen defrosted
  • 1 tablespoon thyme
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 3 tablespoons olive oil


Make the Pastry

  • In a medium bowl, mix the coconut flour, flaxseed meal, salt, baking powder and psyllium husk powder together.

  • Add the coconut oil and blend well.

  • Add the egg and mix thoroughly.

  • Add the boiling water and mix until you have a dough.

  • Let the dough stand for 30 minutes to firm.

Make the Filling

  • In a large frying pan heat the olive oil on a medium heat and add the onion and garlic. Cook for 3 minutes until soft.

  • Clean and slice the mushrooms and cook for a further 5 minutes, stirring occasionally to ensure that the mushrooms are evenly cooked.

  • Add the spinach and seasoning. Stir through then remove from the heat.

  • Allow to cool.


  • Preheat the oven to 200C/400F degrees

  • Roll the pastry out in between two sheets of parchment paper to a large rectangle shape with about 5mm thickness. Don’t roll the pastry too thin as you need it to hold the filling.

  • Spoon the mixture into the middle of the dough, keeping it a rectangle shape.

  • Using the parchment paper, gently bring up the edges of the pastry over the filling so that the pastry covers it. Smooth out any edges and ensure that there are no holes.

  • Carefully turn over the wellington onto a parchment paper lined baking tray.

  • Score the top of the wellington with a pattern.

  • Brush the top of the wellington with the egg wash.

  • Bake for 30-40 minutes until golden and firm.

  • Serve warm.


Makes 10 slices at 5g net carbs per slice.
The net carbs will be the total carb count minus the fibre count. Carb count excludes sugar alcohols.
Any nutritional analysis on the website is based on an estimate, calculated by from the individual ingredients in each recipe. Variations may occur for various reasons, including product availability and food preparation. We make no representation or warranty of the accuracy of this information.


Serving: 1sliceCalories: 202kcalCarbohydrates: 12gProtein: 5gFat: 16gFiber: 7g

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