Season the swordfish with salt and cover generously with Cajun seasoning.
Heat the oil in a sauté pan and sauté the swordfish until cooked.
Notes
After letting it chill in the refrigerator for a few hours, slice and place on a plate in a fan-like presentation. Serve with a dollop of sour cream, sprinkle with the diced tomatoes, and garnish with lemon.