To help the salmon firm up, place it in the freezer for about 10 minutes.
Slice the fish very thinly with a sharp knife, then arrange it on two plates with the pieces just touching.
Olive oil and lemon juice should be drizzled on top. Sprinkle the top with either small mint leaves or broken bits of bigger leaves, and then equally grate the lemon zest over that. Add a few microgreens for decoration before serving.