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!
Based on 6 servings, adjust as needed.
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.
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.
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.
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.
Once the cheese has fully incorporated into the sauce, take off the heat. Taste and season with salt, as needed.
Preheat your oven to 180°C fan.
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.
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.
Repeat until you’ve used up all the sauces, finishing on the final layer of white sauce. Top with the remaining grated cheddar cheese.
Bake for 30-40 minutes until golden on top and bubbling. Let it cool for 10 minutes before slicing and serving.