Steak And Red Wine Casserole With Mashed Potato

potato 50.0% , british beef 18.0% , onion 9.0% , red wine 9.0% , chestnut mushroom 7.0% , carrot 3.5% , mushroom 1.8% , cream 0.9% , butter 0.4% , celery 0.2% , rapeseed oil 0.1% , beef broth 0.1% , corn flour 0.0% , wheat flour 0.0% , tomato purée 0.0% , salt 0.0% , beef gelatin 0.0% , worcestershire sauce 0.0% , parsley 0.0% , garlic puree 0.0% , cherry tomato 0.0% , black pepper 0.0% , cep 0.0% , yeast 0.0% , caramelised sugar 0.0% , Colour 0.0% , E100 0.0% , sunflower oil 0.0% , Secret ingredient 0.0%