Pour the quinoa into a fine mesh sieve.

Rinse under a running tap and thoroughly wash the quinoa (rubbing through it with your fingers) for 3 mins to remove any bitter outer coating.

Let the quinoa drain for a few mins to remove the excess liquid.

Place the quinoa into a pot and add in the water, oil and salt and bring to the boil.

Reduce to a simmer, cover and let cook for 15 mins - you will see tiny spirals (aka the germ) coming out of the seeds.

Remove the quinoa from the heat, open and fluff the grains and let stand for about 10 mins.

Whilst quinoa is cooking preheat the oven to fan 160C / 180C / 350F / gas 4.

Mix the courgettes with the oil and some salt and roast for about 12 mins to soften them.

Take the courgettes out of the oven and set aside to cool but leave the oven on.

Make the yoghurt béchamel by whisking all the ingredients together until well combined.

Spread all of the quinoa in the bottom of the dish.

Then spoon a third of the passata sauce over the quinoa.

Then layer the courgette and the shredded spinach and spoon on the remaining passata.

Finally top with the béchamel sauce.

Bake the lasagne in the oven for 20-25 mins until golden.