Pan-Seared Tuna with Olive-Wine Sauce

Ingredients

• cooking spray
• 1 teaspoon fennel seeds
• 2 garlic cloves, minced
• 3/4 cup dry white wine
• 6 tablespoons chopped pitted black olives
• 3 tablespoons chopped pitted green olives
• 2 tablespoons fresh lemon juice
• 1 teaspoon grated orange rind
• 1/4 teaspoon crushed red pepper
• 1/4 teaspoon black pepper
• 1/8 teaspoon salt
• 2 (6 oz.) tuna steaks (about two inches thick)
• 2 cups hot cooked couscous
• orange rind (optional)