First, cut the vegetables into large chunks and finely chop the garlic.
Pre-heat your BBQ over a medium heat for 2-3 minutes with the Paella Pan in place. Add some oil and fry the onion, aubergine and courgette for a couple of minutes. Add the pepper and tomatoes and cook for another 2-3 minutes.
Add the tomato puree, garlic, salt, sugar and rosemary to the pan. Add a splash of water and bring to the boil, then reduce the heat and let it simmer with the lid on for about 10-15 minutes.
Check the seasoning and once ready serve with some crusty bread or grilled chicken.