When serving sushi or sashimi, be sure to buy only sushi-grade fish and seafood from a reliable source, preferably from a reliable fish market. That goes for the salmon in this recipe, too, which is cut into thin slices (use your sharpest knife for this job) and then arranged on a plate and served with sauteed kale that's enriched with cream cheese, garlic, and chives, as well as soy sauce and wasabi as the essential accompaniments.