large chicken breast, or 4 thighs, cut into bite size pieces,, chopped chorizo (optional),, chopped baby potatoes,, celery, finely chopped,, carrot, finely chopped,, chickpeas, drained,, tinned chopped tomatoes,, baby leaf spinach,, chopped vine tomatoes,, sliced red bell pepper, seeds removed,, sliced medium red onion,, small green pitted olives, (about 60g),