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Roast Butternut Squash, Spinach and Mushroom Lasagne

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Roast Butternut Squash, Spinach and Mushroom Lasagne

A hearty dish that can also be prepared ahead. Make to the end of step 8, then leave to cool completely before freezing. Cook for 35-40 minutes from frozen, until piping hot.

  • Vegetarian
Preparation time:
20 minutes
Cooking time:
60 minutes
Total time:
1 hour 20 minutes 60 minutes 20 minutes
Serves:
 2

Ingredients

  • 500g butternut squash
  • 1 tbsp olive oil
  • ½ x 15g pack fresh sage, roughly chopped
  • 25g butter
  • 250g pack portabellini mushrooms, finely chopped
  • 250g chestnut mushrooms, finely chopped
  • 1 clove garlic, crushed
  • 235g bag Waitrose Spinach for Cooking
  • ½ x 300g pack Waitrose Fresh Lasagne
  • 75g Castelli Vegetarian Italian Hard Cheese, grated
  • 25g Cooks’ Ingredients Toasted Pine Nuts (optional)
  • For the béchamel sauce
  • 25g flour
  • 3 fresh sage leaves, finely chopped
  • 25g butter
  • ½ small onion
  • 300ml milk

Method

  1. Preheat the oven to 200°C, gas mark 6. Peel and deseed the squash, then cut into thin discs or half-moon slices, about 5mm thick. Place on a baking tray, coat with the oil and sprinkle with sage. Bake for 25 minutes until soft.
  2. Meanwhile, start the béchamel sauce. Pour the milk into a pan and add the onion and sage. Bring to a simmer, then remove from the heat and set aside for 10 minutes to infuse.
  3. Melt 25g butter in a large frying pan and add the mushrooms. Season well and fry for 6-8 minutes until soft. Increase the heat, stir in the garlic and fry for a further half a minute. Remove from heat and set aside.
  4. Strain the infused milk, discarding the onion and sage. Heat 25g butter in a small pan, then add the flour, stirring continuously. Slowly whisk in the milk. Simmer for 3-4 minutes, whisking continuously until smooth. Season and pour in any cooking liquor from the mushrooms. Set aside.
  5. Rinse the spinach and place the wet leaves in a large pan. Cover and cook for 2-3 minutes until wilted, then remove from the pan, draining off any liquid.
  6. To assemble the lasagne, spread 2 tablespoons of béchamel sauce in the base of a small baking dish, about 15cm x 22cm. Place a sheet of lasagne on top.
  7. Top with 2 tablespoons of béchamel, then spread with half the mushrooms and sprinkle with a quarter of the cheese. 8 Repeat with a sheet of lasagne, 2 tablespoons béchamel, all the spinach, the remaining mushrooms and a quarter of the cheese. Then repeat with a sheet of lasagne, 2 tablespoons béchamel, three-quarters of the squash and a quarter of the cheese. Finish with a final sheet of lasagne, and top with the last of the squash, the remaining béchamel and the remaining cheese.
  8. Loosely cover the top with foil and bake for 25-30 minutes until golden, removing the foil halfway through. Sprinkle with pine nuts and serve immediately with a roquette salad.

Comments and images

Average user rating 4 stars out of 5

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On the Heath

On the Heath 13 April 2011 17:04

I really liked this recipe. But took ages as I originally made double sauce after reading comments, but needed even more sauce. I would use again but only when I have plenty of time.

Mrs.B

Mrs.B 16 January 2010 19:37

This recipe is quite a lot of work, but well worth the effort. It's a good way of using some veg from the garden - we often substitute chard for the spinach and use any winter squash.

Claire Allison

Claire Allison 06 December 2009 10:34

Followed the advice of previous reviews. Doubled the sauce and cooked for 35 minutes. Great tasting lasagne. Very filling too!

ROZELLA

ROZELLA 17 March 2009 17:24

Great tasting lasagne. Made a change from the usual lasagne. It really does need more sauce then stated. And it takes a little longer to cook. All in all still a great recipe which I shall do again.

cessy

cessy 18 February 2009 14:38

I love this recipe! For days when I'm low on time/funds, I make a simple cheese sauce, using mild local cheddar, and add courgettes and onions to the mushrooms. Just as tasty but a little easier and cheaper!

lilylou

lilylou 06 February 2009 14:17

It was very tasty but I think it needs a pint of white sauce and a bit longer cooking.

Happy Hazel

Happy Hazel 23 September 2008 11:15

Lovely recipe, definitely takes longer than 20 minutes to prepare, great alternative to the usual vegetarian lasagne

Simon, Sylvia and H

Simon, Sylvia and H 30 August 2008 19:47

This is a great lasagne that can be prepared in advance - but the prep time took me a lot longer than 20 minutes!! Allow an hour and a half!

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4 stars out of 5

Average user rating Based on 66 ratings

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Nutritional Info

Typical values per serving:
Energy 912.0kcal
Sugars 21.0g
Fat 45.5g
Saturated Fat 22.8g
Salt 1.6g


This recipe was first published on Waitrose.com in November 2006