||Mix the beef, miso paste and spring onions together and form into 4 patties.
||Mix the wasabi paste and mayonnaise together and set aside.
||Peel the cucumber into thin ribbons, discarding the watery centre. Toss with the sesame seeds, sesame oil and season with salt and pepper.
||Preheat a ridged chargrill or barbeque to moderately high. Lightly brush the patties with vegetable oil. Cook for 3-4 minutes on each side or until cooked to your liking. Set aside to rest for 5 minutes.
||Place the cut side of the buns on the grill to warm through and lightly colour them. Spread the mayonnaise onto the base of the buns. Top with a patty and the drained cucumber salad and serve.