
Cut the beef into thin slices about 1/4 inch (just over 1/2cm) thick. Place one slice of beef in between two sheets of baking parchment and pound thin using a meat mallet or rolling pin. Continue with the rest of the beef slices.
Arrange the slices of beef on a serving plate and lightly season it the sea salt. Sprinkle over the arugula then squeeze over the lemon juice.
Top with shavings of Grana Padano cheese (we use a vegetable peeler to do this), black pepper and a good drizzle of olive oil. Serve.