Step 1

Place the beef in a large sealable plastic bag. Add the tamari, sugar, vinegar, garlic and pepper. Rub to coat. Place in the fridge for 4 hours to marinate.

Step 2

Blend the nashi and onion in a blender until smooth. Add the onion mixture and sesame oil to the beef mixture. Place in the fridge for a further 30 minutes to marinate.

Step 3

Preheat a barbecue flat plate on high. Cook the beef for 2 minutes or until golden. Turn and cook for 1 minute. Place the beef in lettuce leaves and top with the shallot and capsicum.