You will need
1 tbsp lentil
1 tbsp rice
1 carrot, peeled and diced
1 celery stick, diced
1 zucchini, chopped
400g tomatoes, diced
1 cup water
Place all in ingredients in pot, simmer over low heat for 30 minutes. Add extra water if required.
Place vegetable mixture into a food processor and reserve the liquid. Pulse the vegetables until smooth, add extra liquid if required.