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
2 large aubergine	sliced into disks

veg mixture
4 onions	sliced	fry for 5 min until softened	stir cover and cook for 5 mins
4 cloves garlic	chopped
2 tbsp 0.03 l 30 ml 6 tsp 0.127 cup 0.053 pint oil
4 large courgettes	diced
2 red pepper	deseeded and roughly sliced
2 yellow pepper	deseeded and roughly sliced
800g ⁴⁄₅kg 1.76lb 28.2oz chopped tomatoes
4 tbsp 0.06 l 60 ml 12 tsp 0.254 cup 0.106 pint tomato puree
4 vegetable stock cubes	finely chopped
3 tsp 0.015 l 15 ml 1 tbsp 0.063 cup 0.026 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
6 lasagne sheets
¹⁄₃ of the veg mixture
remaining sliced aubergine
6 lasagne sheets
remaining veg mixture
500g ¹⁄₂kg 1.1lb 17.6oz mozzarella	chopped