Lets start by preparing the staffing, place the roughly chopped stale bread, garlic, pistachio nuts, parsley, capers ,green olives, parmesan and lemon (zest and juice) in a food processor and blend until a uniform crumb is obtained, taste for seasoning and adjust if needed.
Arrange the swordfish slices between two cling film layers, then gently pound them until they are a uniform 2/3 mm in thickness
Remove the top cling film layer, season the swordfish and spoon the staffing evenly on top
Roll the swordfish steaks in a tube
Put the griddle pan on the heat, pour the olive oil in a small plate and roll the involtini to coat them evenly.
Place the sword fish involtini into the hot griddle pan with the end lip on the bottom, this will seal the roll avoiding them opening during the cooking.
Cook for one minute on each side for a total of four minute, then remove from the heat and cover with aluminium foil or a lid and let it rest for a further two minutes
Serve hot with a side salad or a side of your choice