All you need is some garlic cloves, 2 aubergines, 1 can of 400g chopped tomatoes in tomato sauce, 3 tomatoes (optional), 200g-300g cheese (I had some cheddar, you can use other nice melt-able cheese) , olive oil, salt and pepper
Firstly, slice the aubergine into round cross sections of about 2 inches thick. Note that I have done it length-wise as per the pictures below, but found that it made serving the dish later more difficult in terms of cutting them into portions. Then, brush some olive oil on both sides of the aubergines and season with some salt and pepper. Get your grilling pan and heat it up for some serious grilling!
Grill the aubergines both sides till almost cook and soft. It took me about 5 minutes each side. Be careful not to burn them too much!
... then continue with the grilled aubergines, cheese, sauce, and then repeat again. I added a layer of tomatoes into mine for fun, supplementing the sauce :)
Try not to overflow the dish though! Finish up with a nice layer of cheese and place it in the oven to bake for 30 minutes and its done!