2 ounces bean threads (cellophane noodles) 1/3 cup fresh lime juice 3 tablespoons soy sauce 1 tablespoon fish sauce 1 tablespoon olive oil 1 tablespoon dark sesame oil 2 teaspoons sugar 1 teaspoon wasabi paste 2 tablespoons chopped fresh cilantro 2 green onions, thinly sliced 1 finely diced avocado 1/2 English cucumber, quartered and thinly sliced 1 pound sushi-grade tuna, finely diced 2 tablespoons toasted sesame seeds 2 tablespoons toasted black sesame seeds