Directions

1. To prepare the couscous: Toast half the couscous in a dry skillet over medium heat. Bring the stock to a boil in a medium pot, stir in the couscous, cover and simmer over low heat until the stock is absorbed and the couscous is tender, about 10 minutes. Remove from heat, fluff with a fork and set aside.
2. Put the tomatoes, scallions, capers, and basil in a serving bowl. Stir in the couscous. Whisk the garlic, olive oil, lemon juice, salt and pepper to taste in a small bowl and pour over the couscous. Toss to combine.
3. To prepare the sauce: Whisk the soy sauce, rice wine vinegar, honey, sesame oil, and the wasabi powder in a small bowl. Taste, and add more wasabi if desired.
4. Lightly rub the tuna steaks with oil and season with salt and pepper. Grill the tuna on a very hot grill 1 to 2 minutes per side depending on preference. Should be pink or red in center.