Heat the oil in a large pan on medium heat and add the garlic and tomato purée.
Add all chopped vegetables cook for 10minutes until they are all soft.
Add the chopped tinned tomatoes and water.
Bring to the boil and then simmer for a further 10-15mins, stirring occasionally.
Season to taste.
Can be taken to school, university or work in a flask or microwaveable container for a hot lunch.