Set oven to 200c.
Chop 2 large onions and 2 cloves garlic.
Pop these into a large pan with a splash of oil and cook for a couple of minutes.
Add a bag of frozen veggy mince and stir in two cartons of chopped tomatoes and a handful of dried herbs.
Simmer for five minutes before whizzing with a hand blender.
Then melt a knob of solid veg fat in a second pan and mix in a generous shake of plain flour.
Add milk, stirring all the while, and adding more milk as this thickens.
When you have a good amount of white sauce, remove from the heat, stir through a teaspoon of salt and add two large handfuls of grated cheese.
Now, alternating with the 'meat' sauce and the cheese sauce, make layers using dried lasagne sheets.
Finish with a layer of the cheese sauce.
Pop into the oven for half an hour.
Eat in delicious silence.