Add the olive oil & onion to a large frying pan and heat to a medium heat. Fry for approx 8-10 minutes until soft and browning.
Add in the garlic and stir for another few minutes, then add in the chopped tomatoes, red peppers, courgette, aubergine, chilli, smoked paprika and sundried tomato paste.
Add the water, stir, then cover snd simmer for 20 minutes.
Season with salt, pepper & add in the olives and capers.
Then simmer uncovered for a further 10 minutes.