Sweat the chopped chorizo in a large casserole dish over a low heat, stirring for about 2 to 3 minutes until all the juices are released and the chorizo pieces are browned but not burnt.
Add the chicken, potatoes, onions and courgettes to the pan and cook stirring together for a few minutes until the chicken is no longer pink.
Add the garlic, paprika, chilli, tomatoes, chicken stock and chickpeas. Bring the contents of the pan to a boil and then turn down to simmer for 5 minutes.
Transfer to centre of preheated oven and cook for 50 – 60 minutes, stirring half way through.
Seasons to taste and serve in bowls with the chopped coriander sprinkled over.