Preheat the oven at 200 degrees Celsius (390 Fahreneheit).
Slice the aubergines, and spread them over 2 baking trays.
Season lightly with salt and pepper, and drizzle olive oil over.
Bake for 20 minutes.
To make the marinara sauce, heat up the olive oil in a large frying pan, add the peeled and chopped garlic and fry it briefly to release its flavour.
Add the tinned tomatoes and use a masher to roughly mash the tomatoes.
Season with salt and pepper, and add the oregano.
Place a lid on the pan and leave the sauce to simmer for 8-10 minutes or until it's reduced and thicken into a sauce.
Spread a thin layer of tomato sauce over the bottom of a baking dish, arrange one layer of aubergine slices, top with tomato sauce and parmesan, then another layer of aubergine slices until you finish them all up.
Make sure you end with tomato sauce and cheese on top.
Bake for a further 10-12 minutes until the aubergine stacks are tender, and the cheese is melted.
Garnish with fresh parsley and basil.