For the salmon, you can cook it or serve it raw. For cooked, season the salmon with salt and pepper. Saute on medium low heat in a skillet for 3 minutes per side. Remove from the pan and let cool. For raw, cut the salmon into small cubes.
Place the salmon in a bowl. Add the soy sauce and togarashi seasoning. Stir to combine.
In a food processor, blend together the avocado, mayo, lime juice, cilantro, and salt. I like to add this sauce to a squeeze bottle or piping bag.
To assemble, squeeze some avocado mayo onto each cucumber slice.
Cut the cucumber into thin slices (not too thin). Pat them dry with a paper towel. Season with salt.
Squeeze on some avocado mayo. Then top with the salmon and the microgreens.