Allow the steak to get to room temp, season with salt and pepper and a little oil.
Take a pan on a high heat, add a little oil.
Cook the steak for a minute each side to get nice bit of colour.
Turn down the heat slightly, add the butter and teriyaki and cook for a further couple minutes, basting the steak with the butter.
Once cooked to you liking, remove from heat onto a board to rest.
Mix everything for the dressing together in a bowl, then add the edamame, sliced spring onion, sliced cucumber, avocado, mint & coriander leaves, sesame seeds and crispy onion and toss
Slice the steak, add to salad, toss and enjoy.
