Aubergine parmigiana recipe on Second Nature

Name: Aubergine parmigiana recipe on Second Nature
Cuisine: European, Italian, Mediterranean
Ingredients: extra virgin olive oil; large aubergines, sliced lengthways; 1/2 tbsp; butter; small red onion, finely diced; garlic cloves, finely diced; 1.5 tsp; dried oregano; 1 x 400g; tin chopped tomatoes; 30ml; water; 1 large handful; fresh basil, roughly chopped; 125g; Mozzarella, thinly sliced; 60g; Parmesan, grated