Add the tuna, Lee Kum Kee Sriracha Chili Sauce, Lee Kum Kee Pure Sesame Oil, green onions, and toasted sesame seeds to a bowl. Mix until combined.
Distribute the spicy tuna onto the tostadas. Top each tostada with avocado, radish, and jalapeno. Garnish with black sesame seeds, white sesame seeds, and sliced green onion. Serve with lime wedges and enjoy!