Lightly spray rack of broiler pan with no-stick cooking spray or oil lightly. Combine first 8 ingredients; mix well. Shape into six burgers. Place on rack of prepared pan or over medium-hot coals on outdoor grill 6 inches from heat. Broil 7 to 9 minutes on each side or until golden brown. Serve on buns with rounded tablespoon sour cream per serving. Garnish with lettuce and sliced tomato, if desired. Nutrition Information: 1/6 of recipe Calories 280, Calories From Fat 30, Total Fat 3g, Saturated Fat 1g, Cholesterol 40mg, Sodium 420mg, Total Carbohydrates 39g, Dietary Fiber 4g, Protein 26g Note: * If not available, substitute l pound 90% lean ground turkey meat and see the following nutritionals. (Per Serving) Calories 310, Calories From Fat 70, Total Fat 8g, Saturated Fat 2g, Cholesterol 50mg, Sodium 430mg, Total Carbohydrates 39g, Dietary Fiber 4g, Protein 23g.