Add the radish, cucumber and avocado into a medium sized bowl. Toss with the lemon juice.
Add the smoked salmon, sesame oil and cilantro. Stir well to combine.
Taste and salt accordingly. Serve immediately.
Salt this salad after everything is combined and you’ve tasted it. Smoked salmon tends to be salty on its own and you may prefer minimal to no salt. I find that just a pinch or up to 1/8 teaspoon is plenty.