Get your steak out of the fridge 40 minutes before you intend to cook it to bring it up to room temperature.
For the Chimichurri, chop the parsley and mint, mince the garlic and dice the chilli and put into a bowl.
Add the olive oil, vinegar and lemon juice and season with salt and pepper. Set aside.
Season the steak on both sides with salt and fry in a hot frying pan until golden brown. Usually 2 minutes on each side.
Once you flipped the steak you could add a spoonful of butter along with some crushed garlic and thyme and baste the steak to make the steak even more delicious.
Rest the steak for at least 5 minutes before carving.
Cut the ciabatta in half lengthways and lightly cover it in olive oil.
Toast in a frying pan or griddle pan. Once toasted the wait is nearly over.
Carve the steak into thin strips and lay on top of the toasted bread.
Then generously cover the steak in the chimichurri salsa.
Enjoy!