Final answer:
Asian Ahi Tuna Sashimi is usually served with a marinade of soy sauce, sesame oil, and ginger, and garnished with items like cucumber, radish, and sesame seeds.
Step-by-step explanation:
The Asian Ahi Tuna Sashimi is typically served with a marinade that features a combination of soy sauce, sesame oil, ginger, and sometimes ingredients like garlic, green onions, and lemon or lime juice. The exact marinade composition can vary depending on the recipe or restaurant. Additionally, the garnishes often include items such as thin slices of cucumber, radish, seaweed salad, avocado, or a sprinkle of sesame seeds, depending on the chef’s preference and the style of the dish.