I'd go with the recipe as it stands - I reckon you might surprise yourself. Aubergine can be absolutely fantastic cooked like that, in 5mm slices - in fact, you've reminded me of an 'aubergine lasagna' (basically just like a lasagna, but with fried/floured/egged thin slices of aubergine substituting for pasta) I used to make, much like that, before the munchkins came along - it was fantastic. Actually, where is that recipe....?
