Slow cooker vegetable lasagne - Cooking like a Boss

I'm not one for vegetable lasagne but this is actually really nice. Double, quadruple or more the mozzarella for more mozzarella.

sliced aubergine
1 ¹⁄₂ large aubergine	sliced into disks

veg mixture
3 onions	sliced	fry for 5 min until softened	stir cover and cook for 5 mins
3 cloves garlic	chopped
1 ¹⁄₂ tbsp 0.022 l 22 ¹⁄₂ ml 4 ¹⁄₂ tsp 0.095 cup 0.04 pint oil
3 large courgettes	diced
1 ¹⁄₂ red pepper	deseeded and roughly sliced
1 ¹⁄₂ yellow pepper	deseeded and roughly sliced
600g ³⁄₅kg 1.32lb 21.2oz chopped tomatoes
3 tbsp 0.045 l 45 ml 9 tsp 0.19 cup 0.079 pint tomato puree
3 vegetable stock cubes	finely chopped
2.25 tsp 0.011 l 11.2 ml 0.75 tbsp 0.048 cup 0.02 pint dried basil

¹⁄₂ of the sliced aubergine	layer (bottom to top)	cook on high for 2.5 - 3 hours	scatter on top and leave 10 minutes to melt
4 ¹⁄₂ lasagne sheets
¹⁄₃ of the veg mixture
remaining sliced aubergine
4 ¹⁄₂ lasagne sheets
remaining veg mixture
375g ³⁄₈kg 0.827lb 13.2oz mozzarella	chopped