Chop one lettuce leaf; set aside remaining leaves. In a small bowl, combine the turkey, chopped lettuce, tomato, green onion, lime juice, jalapeno, sugar, salt, garlic powder and pepper; set aside.
Place one lettuce leaf on each tortilla. Spoon half the filling off center on each. Fold one end over filling and roll up. Slide each wrap through the middle of an onion ring. Secure roll-up with a toothpick near the onion ring; top each with an olive if desired. Yield: 2 servings.