Izy's Vegetarian Lasagne

by Izy Hossack

When it comes to a veggie lasagne, the key to success is getting lots of flavour into that ‘ragu’. I find an important part of this is time - you need to let the tomato lentil ragu cook for a good amount of time over a low-ish heat to let the flavours develop and to make the sauce rich. I love using puy lentils as they have a firmer texture but you can simply sub for tinned green lentils if that’s what you’ve got!

Method

Based on 6 servings, adjust as needed.

Step 1

Heat the oil in a large pot over a medium-low heat. Once hot, add the onion, carrot and celery with a generous pinch of salt. Cook, stirring often, for 15-20 minutes until the vegetables are softened and starting to turn golden in places.

Step 2

Add the chopped tomatoes and 1 tin of water to the pot, too (if cooking a 6-portion lasagne). Stir in the lentils, marmite, oregano, sugar and balsamic vinegar.

Step 3

Bring to a boil then turn down to simmer and let cook for a further 30-40 minutes until thickened. Taste and season with salt, as needed.

Step 4

Meanwhile make the cheese sauce by melting the butter in a medium pot over a medium heat. Stir in the flour and cook for a minute to toast then gradually whisk in the milk, followed by the water. Keep cooking, stirring occasionally, until thickened then stir in just over half of the grated cheddar.

Step 5

Once the cheese has fully incorporated into the sauce, take off the heat. Taste and season with salt, as needed.

Step 6

Preheat your oven to 180°C fan.

Step 7

Spread a few tablespoons of the tomato-lentil sauce into a large, deep baking dish. Lay dried lasagne sheets in a single layer on top of this, breaking the sheets up as needed to fill any gaps.

Step 8

Spread ¼ of the tomato-lentil sauce on top of this, followed by ¼ of the cheese sauce. Top this with a layer of dried lasagne sheets like before.

Step 9

Repeat until you’ve used up all the sauces, finishing on the final layer of white sauce. Top with the remaining grated cheddar cheese.

Step 10

Bake for 30-40 minutes until golden on top and bubbling. Let it cool for 10 minutes before slicing and serving.

  • Ingredients
  • Based on 6 servings
  • 350g Dry Lasagne Sheets 1x Sainsbury's Lasagne Sheets Pasta 500g
  • 1 tbsp Oregano 1x Sainsbury's Oregano 12g
  • 2 tsp Marmite 1x Sainsbury's Yeast Extract, Reduced Salt 225g
  • 1 tbsp Balsamic Vinegar 1x Sainsbury's Balsamic Vinegar Of Modena 1 Leaf 250ml
  • 0.5 tsp Sugar 1x Sainsbury's White Granulated Sugar 500g
  • 250g Pouch Cooked Puy Lentils 1x Merchant Gourmet Puy Lentils & French Green Lentils Simply Cooked 250g
  • 2 Tins Chopped Tomatoes 2x Stamford Street Co. Chopped Tomatoes in Tomato Juice 400g
  • 60g Salted Butter 1x Sainsbury's British Butter, Salted 250g
  • 70g Plain White Flour 1x Sainsbury's Plain Flour 500g
  • 1 pint Semi Skimmed Milk 1x Sainsbury's British Semi Skimmed Milk 1 Pint
  • 125g Cheddar Cheese, grated 1x Sainsbury's British Mature Cheddar Cheese 400g
  • 3 tbsp Olive Oil 1x Sainsbury's Olive Oil 500ml
  • 2 Onions, finely diced 1x Sainsbury's Onions Loose
  • 3 sticks Celery, finely diced 1x Sainsbury's Celery
  • 3 Carrots, finely diced 3x Sainsbury’s Carrots Loose
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