Preheat the oven to 180C/350F/Gas 4. For the mushroom, cheese and steak stack, drizzle a little olive oil over the Portobello mushrooms. Heat a frying pan over a medium heat and fry the mushrooms ...
For the cheesesteak, cut the steak into 1–2mm ... and fry over a medium heat for 10 minutes. Add the mushrooms and cook for another 10 minutes, or until the onion and peppers are caramelised ...