Pour in the wine and stir in the chopped thyme leaves, then leave to simmer for 5-6 minutes, or until the liquid has thickened. Pour the mushroom and red wine sauce over the steaks and serve.
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 ...