Finely chop the onion and squeeze the garlic cloves out of their skin into a small bowl.
Cut the carrot into small cubes.
Heat the olive oil in a large pan and gently sauté the carrot and onion. Add the spices, the tomato purée and the garlic purée. Stir to combine, then pour over the water.
Cook under cover for about 15 minutes until the carrot is tender, then add the peas and cook for five more minutes.
Season with salt and pepper to your liking and scatter some coriander on top. Serve warm with a squeeze of lemon.