1. Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Add turkey to pan; cook 5 minutes or until done, stirring to crumble. Remove turkey from pan; set aside to cool.
2. Combine onion slices and next 5 ingredients in a medium bowl. Let stand 10 minutes. Stir turkey into onion mixture; sprinkle with peanuts.
3. Serve turkey mixture in cabbage leaves.