Nekabu, it's a bit of a faff, but lovely.
Get yer aubergine and slice, not thick, not thin, just medium and frin in Olive Oil until slightly toasty. Ste aside on kitchen paper.
Make a tomato sace (in fact this is the 1st step) by frying garlic and onion and adding a tin of toms, some V8 and basil/pesto/tom puree.
Peel 3 spuds, slice thinly, put in an oven dish, chuck on a quarter pint of milk, cover and stuff in oven for 50mins at 180.
Grate some mature cheddar cheese.
Now, layer, tom sauce, aubergine, spuds and cheese, twice, finishing with cheese. Then stick in oven at 200 degrees until toast on top.
See what you have to do to make aubergine taste good??!!
Freezes well too.