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Christmas Cheesy Rosemary Mushroom Wellington

Christmas Cheesy Rosemary Mushroom Wellington

with Creamy Wild Mushroom Sauce and Roasted Carrots
Recipe Development Team
Recipe Development TeamUpdated on November 04, 2025
Calories
759 kcal
Protein
21.9g protein
Total
45 minutes
Difficulty
Medium
Allergens:
  • Cereals containing gluten
  • Wheat
  • Milk
  • Milk
  • May contain traces of allergens
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

½ pack(s)

Puff Pastry Sheet

(Contains: Cereals containing gluten, Wheat May contain traces of: Milk)

1 unit(s)

Onion

1 unit(s)

Garlic Clove

3 unit(s)

Carrot

180 grams

Sliced Mushrooms

90 grams

Mature Cheddar Cheese

(Contains: Milk)

1 sachet(s)

Dried Rosemary

22.5 grams

Wild Mushroom Paste

75 grams

Creme Fraiche

(Contains: Milk)

Not included in your delivery

150 milliliter(s)

Water for the Sauce

Energy (kJ)3174 kJ
Energy (kcal)759 kcal
Fat49.7 g
of which saturates28.2 g
Carbohydrate58.8 g
of which sugars22.4 g
Dietary Fibre24 g
Protein21.9 g
Salt2.9 g
Potassium96.6 mg
Calcium21 mg
Iron0.2 mg
Always refer to the product label for the most accurate ingredient and allergen information.
Chopping Board
Grater
Knife
Large Frying Pan
Baking Tray

Instructions

1

Preheat your oven to 240°C/220°C fan/gas mark 9. Remove the puff pastry from your fridge. 

Halve, peel and chop the onion into small pieces. Peel and grate the garlic (or use a garlic press). 

Trim the carrots, then halve lengthways (no need to peel). Chop into roughly 1cm wide, 5cm long batons.

2

Heat a drizzle of oil in a large frying pan on medium-high heat.

Once hot, add the onion and mushrooms and stir-fry until softened, 5-6 mins. Season with salt and pepper.

Meanwhile, grate the cheese.

Once the veg has softened, stir in the garlic and dried rosemary. Cook, stirring, for 30 secs, then remove from the heat and allow to cool slightly.

3

Lay your pastry sheet (see ingredients for amount) on a large baking tray with its baking paper beneath.

Once the mushroom filling has cooled, spoon it down one side, leaving a 2cm border. Top with the cheese.

Fold the pastry over the filling to enclose it, gently pressing down the edges with the back of a fork to seal the 3 open sides. Poke 3 holes along the top with a sharp knife.

4

Pop the carrots on the same tray as the Wellington. Drizzle the carrots with oil, season with salt and pepper, then toss to coat. Spread out in a single layer. TIP: Use two baking trays if needed.

Bake on the top shelf of your oven until golden, 15-20 mins. 

When the Wellington is cooked, allow to rest for a few mins.

5

When the Wellington has a few mins left, pop the (now empty) frying pan back on medium-high heat (no oil).

Pour in the water for the sauce (see pantry for amount) and bring to a boil, then stir in the wild mushroom paste.

Reduce the heat to a simmer and keep stirring until combined and slightly thickened, 1-2 mins.

Stir in the creme fraiche until piping hot, then taste and season with salt and plenty of pepper. Add a splash of water if it's a little too thick.

6

When ready, slice the mushroom Wellington in half widthways and share between your plates.

Serve the carrots alongside and spoon the creamy wild mushroom sauce (reheat first if needed) over everything to finish. 

Enjoy!

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