A lot of people will disagree with me on this one, but I think that the best way to cook a Christmas roast is in the Air Fryer. This is The Ultimate Vegetarian Beet Wellington with roast veggies. It's delicious and it’s all cooked in the Ninja Dual Zone AirFryer. Give it a go this Christmas and enjoy!

AD - I have partnered up with Ninja Kitchen UK to bring you this gorgeous and tasty Beet Wellington recipe. Their Ninja Foodi MAX Dual Zone Air Fryer AF400UK takes mealtimes to the MAX with the large capacity air fryer that cooks 2 foods, 2 ways, and finishes at the same time. It's easy to use, efficient, and a best friend in the kitchen!
About This Recipe
Having a roast is a special occasion in most households, so why not make a show-stopping vegetarian dish this year instead of a meat one? AND, why not make it in an Air Fryer? I’ve partnered up with Ninja and I can hand-on-heart say that their Ninja Foodi Dual Zone AF4000 Air Fryer is brilliant. It has two compartments which can be set at different times and temperatures…perfect for a roast! Simply add your veggies to one compartment with a drizzle of oil, and your Beet Wellington in the other, and watch the magic happen quickly and efficiently. So, not only does it make life easier for you, but it could also save you up to 65% on your energy bill!
Ingredients For This Beet Wellington
One of the beautiful things about this recipe, is that it doesn’t require any fancy vegetarian ingredients, it uses whole vegetables and spices that can be easily combined to form a delicious and beautiful dish. There are three main elements to this recipe, the Beet Wellington “Beef” filling, the duxelles (mushroom coating), and the roasted vegetables. So, I’ll go through them group by group:
Beet Wellington Filling
- Sweet potato
- Beetroot
- Onion
- Garlic
- Rosemary
- Mixed nuts
- Salt & Pepper
For this section of the recipe, simply slice your sweet potato, raw beetroot, onion, and garlic into small chunks and roast them in the Air Fryer with rosemary, oil, and salt and pepper for 10 minutes on 180C until al dente. Remove the vegetables from the Air Fryer compartment and blend them in your food processor with the mixed nuts until a rough paste has formed. The colour should look fantastic! Grab a sheet of clingfilm and transfer your Beet mixture into the centre of the clingfilm and form it into a log. Tightly wrap up the log in the cling film, and place it in the fridge until your Beet Wellington is ready to construct.
Duxelles:
- Olive oil
- Onions
- Mushrooms
- Salt & Pepper
While your Beet Wellington filling is cooking in the Air Fryer, you can begin to start on your Duxelles (a finely chopped mixture of mushrooms, onions, and seasoning). Finely chop up your onion and mushroom. Add them to a pan with olive oil and a generous seasoning on salt and pepper. Leave the mushrooms to cook for around 10-15 minutes and let as much liquid evaporate as possible. Once you have a dry mushroom mixture, turn off the heat and set aside.
Roasted Vegetables:
- Potatoes
- Carrots
- Parsnips
- Brussels Sprouts
Now, for the potatoes, this additional (some would say essential) step is up to you. BUT, for the fluffiest and most gorgeous potatoes, I would highly recommend it. Slice your potatoes into sizeable chunks and boil in a pan of water for 10 minutes or until partially cooked. Drain using a colander and then shake them around to roughen up the edges (you don't have to boil them pre-roasting them, but I'd highly recommend it!). Prepare all your other veg, and then place them into one of the Air Fryer drawers with a glug of oil and seasoning. Roast for 15 minutes at 180C, giving it a shake half-way through so that your Brussels don’t burn! Once your Air Fryer has finished roasting, serve up and enjoy!
Variations & Substitutions For This Ultimate Beet Wellington
There are dozens of veggie Wellington options, so feel free to change out any vegetable you don’t particularly fancy with a different one! Here are some recommendations below!
Sweet potato - you could use butternut squash or pumpkin as an alternative.
Beetroot - this is pretty essential for the colour of the wellington, however, you could sub it out with red cabbage or red pepper which would also give it a reddish colour, but not as strong as the raw beetroot.
Rosemary - you could use any herb based on your taste e.g. thyme, paprika, mixed herbs, cumin…
Duxelles - if you really don’t like mushrooms, a substitute that could work is finely chopped aubergine. You’d have to make sure all of the moisture has been removed thought, before assembling your Beet Wellington.
In terms of roasted vegetables, this is where you can get creative! Feel free to choose an array of vegetables based on what you like!
The Ultimate Beet Wellington
Ingredients
For The Wellington Log
- 300g sweet potato, peeled and sliced into small chunks
- 300g raw beetroot, peeled and sliced into small chunks
- ½ onion, roughly sliced
- 2 garlic cloves
- 2 rosemary sprigs
- 100g mixed nuts
- 375g ready to roll puff pastry
- 1 egg, for eggwash
For The Duxelles
- 2 tablespoon olive oil
- 2 onions, finely chopped
- 600g mushrooms, finely chopped
- ½ teaspoon ground black pepper
- Pinch of salt
For The Roast Vegetables
- 5 potatoes, sliced in half or into quarters
- 2 carrots, roughly chopped
- 50g brussels sprouts
- 2 parsnips, sliced in half lengthways and widthways
For The Gravy
- 2 portions of vegetarian gravy
Instructions
For The Wellington Log
- Add your sweet potato, beetroot, onion, garlic, and rosemary to one Air Fryer compartment and set the dial to roast for 10 minutes on 180C, until the vegetables are al dente.
- Remove the vegetables from the Air Fryer and add them to your food processor with some salt and pepper, and your nuts. Blend the elements until a rough paste has formed.
- Lay down a sheet of cling film on your kitchen surface. Place the beet mixture into the centre of the cling film and form into a log. Wrap it up and place it into the fridge.
For The Duxelles
- Add olive oil to a large saute pan and set over medium heat. Add the finely chopped onion and mushrooms and saute for 10-15 minutes until most of the liquid has evaporated. Season with salt and pepper. Set aside to cool.
Constructing Your Beet Wellington
- Remove the puff pastry roll from the fridge and leave to warm up for 10 minutes.
- Lay down your pastry and using a rubber spatula, cover evenly with a layer of duxelles.
- Remove your Beet Wellington log from the fridge, unwrap it out of its clingfilm, and place it at one end of the puff pastry/duxelles. Tightly roll the Beet Wellington up in the duxelles and puff pastry layer. Cut off any loose bits of pastry (keep these for toppings). Then, roll it up tightly in cling film and twist the ends to seal it completely and hold it in a nice log shape. Use any leftover pieces of pastry to cut out some cute toppings. Egg wash the underside of the cutout pieces of pastry and then stick them onto the top of the wellington. Set in the fridge for 30 minutes to ensure it maintains its shape.
Cooking Your Veggies & Beet Wellington
- Egg wash your beet wellington and then place it in one of your Ninja Air Fryer compartments.
- Place your vegetables to roast in the other Ninja Air Fryer compartment and drizzle with oil. Close both doors.
- Set the Air Fryer to ROAST for 20 minutes at 180C for the Beet Wellington compartment and 10 to 15 minutes at 180C for the vegetable compartment (giving them a shake halfway through). Press the SYNC button to ensure that your two compartments finish cooking at the same time.
Assembling Your Dish
- While you're waiting for your Beet Wellington and vegetables, prepare your vegetarian gravy.
- Once your elements are all cooked, serve up with a generous portion of gravy, and enjoy!
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