1. Combine first 10 ingredients in a saucepan. Bring to a simmer; cook 10 minutes. Combine sauce and chicken.
2. Combine mayonnaise, vinegar, and sugar. Add coleslaw and onions; toss.
3. Place about 1/2 cup chicken mixture on bottom half of each bun. Top each serving with about 1/2 cup coleslaw mixture; top with top half of bun.
MyRecipes is working with Let's Move!, the Partnership for a Healthier America, and USDA's MyPlate to give anyone looking for healthier options access to a trove of recipes that will help them create healthy, tasty plates. For more information about creating a healthy plate, visit www.choosemyplate.gov.