Place peppers and chicken into your slow cooker pot.
Mix sachet contents with tomatoes and tomato purée, and add to slow cooker pot. Stir through.
Cover and cook for up to 4 hours on HIGH or up to 8 hours on LOW, or until meat is tender and cooked through. (Keep covered during cooking. Slow Cookers vary. Directions based on a 3.5 litre Morphy Richards model).
Remove lid, stir through and stand for 5 minutes before serving.
For an authentic twist why not try adding pitted olives and a splash of red wine, or stir in a handful of capers at the end of cooking.