Remove the casserole pot from the oven and transfer the meat into another baking tray. Cover it with two sheets of aluminum foil. Put the wine in the casserole pot and scrape the dried pieces of meat with a spatula, in order to make a tasty sauce. Put the potatoes into the casserol pot, add a little bit of oil, salt, pepper and stir. Cover with the lid, put it in the oven and bake for 30'.