Season the salmon with salt and let rest in the refrigerator for at least 30 minutes.
Add avocado oil and cook the salmon sous vide to your preferred doneness or 120ºF for 1 hour. https://www.seriouseats.com/recipes/2016/08/sous-vide-salmon-recipe.html If you do not have a sous vide machine, you can also slow roast the salmon in the oven. Simply place the salted, oiled fish onto a parchment-lined baking sheet and roast for 15-20 minutes at 275ºF.
For the Miso Fennel Salad
While the salmon cooks, prepare the salad dressing by combining miso paste, vinegar, monk fruit, ginger, avocado oil, and sesame oil. Mix well until smooth.
Combine the shaved fennel and microgreens, reserve until salmon is finished cooking.
To Plate
Once salmon is cooked, toss the salad with the dressing and plate onto two plates.
Add a piece of salmon to each salad.
Sprinkle with a small amount of cayenne and top with furikake.