1. Prepare charcoal grill with medium-hot coals or heat gas grill to medium-high; coat rack with nonstick cooking spray. For dressing, whisk together 4 tablespoons of the oil, the vinegar, garlic, oregano, salt, and pepper. Set aside. 2. Brush tomatoes, eggplant, and onion with remaining 1 tablespoon oil. Pierce sausages several times with the point of a small knife. Grill vegetables and sausages, turning often, 13 to 15 minutes, or until sausages are no longer pink and vegetables are crisp-tender. 3. Meanwhile, cook pasta according to package directions. Drain; place in a large bowl. 4. Remove vegetables from grill and chop into bite-size pieces; cut sausages into coins, then cut each coin in half. Add sausage and vegetables to pasta. Drizzle with dressing and toss to coat Nutrition facts per serving: 382 calories, 12g protein, 36g carbohydrate, 23g fat (6g saturated), 4g fiber