01 - Wash and finely chop the green onions, keeping the whites and greens separated for use in the mixture and for garnish.
02 - In a small bowl, whisk together mayonnaise, freshly squeezed lime juice, sriracha sauce, and season with salt and black pepper. Set aside for serving.
03 - In a mixing bowl, blend drained tuna, green onion whites, egg, soy sauce, arrowroot powder or flour, mayonnaise, minced garlic, salt, and black pepper. Mix thoroughly until evenly incorporated.
04 - Portion the tuna mixture into 9 equal pieces. Form each into a compact cake, roughly 2 inches in diameter, and gently press each side into the panko crumbs for a consistent coating.
05 - Heat a nonstick skillet over medium heat with a combination of avocado oil and a drizzle of sesame oil. Fry cakes in batches for approximately 2 minutes per side, or until exterior is golden brown and heated through.
06 - Transfer finished tuna cakes to a serving plate. Drizzle with the spicy mayonnaise and finish with a sprinkle of toasted sesame seeds and reserved green onion greens.