Combine the soy, mirin, brown sugar, sesame oil, garlic, ginger and coriander in a bowl. Add the steak; cover and refrigerate to marinade for 3 hours (or over night).

Once marinaded, remove the steaks from the marinade and reserve the liquid. Fry the steaks on both sides over medium-high heat in a good quality skillet/non stick pan until cooked to your liking. Remove them from pan and allow to rest.

Pour the reserved liquid into a smaller saucepan; bring to the boil; reduce heat and allow to simmer until the marinade has thickened and cooked through (for at least 5 minutes).

Cut the beef into strips and coat them in the reserved marinade sauce.

Whisk the soy sauce, lime juice, mirin and sesame oil together in a bowl. Add the shredded and grated veggies and coat well.

Combine the tomatoes, cilantro, onions and finely diced jalapeño together in your serving dish. Drizzle with the lime juice and olive oil. Salt to taste.

Build your tacos with the greek yogurt or sour cream; Beef; Slaw and Pico De Gallo.