In a medium-size mixing bowl, combine 3 tablespoons of the sesame oil with the next six ingredients and whisk well. Season with salt and pepper.
In another mixing bowl, combine the nuts, seaweed, jalapenos, and onions. Add the ahi and mix well. Season with salt and pepper.
Combine the salad dressing with the ahi mixture. Toss the radicchio with the remaining 2 teaspoons sesame oil.
To serve, arrange the radicchio in the center of a serving platter. Mound the salad in the center and garnish with the chives.
Yield: 6 servings