Put the aubergine onto a baking tray and coat in the oil, salt and pepper. Place in a pre-heated oven on medium heat for approx 25 minutes, turning occasionally.
Char-grill the peppers on a griddle pan (high heat) for approx 15 minutes, turning frequently until nice and charred on both sides. Set aside and when they are cool, chop finely.
Pour the olive oil into the pan and add the spring onion, garlic and cumin. Fry on a medium heat until just colouring and get soft. Add the tomatoes, peppers, chilli flakes, salt and pepper. Simmer for 15-20 minutes until soft. Note, you may need to keep adding a little water if the mix is getting too dry.
Add in the roast peppers and aubergine, stir to combine and simmer of a couple of minutes.
Top with fresh coriander.