In a large skillet cook ground chicken and onion over medium heat, breaking up chicken with a fork as it cooks. Cook just until chicken begins to lose its pink color, drain off fat and add to the slow cooker.
Add the remaining ingredients and stir to combine. Cover, cook on low heat 6 to 8 hours.
Fast Slow Cooker Prep Option: Add uncooked ground chicken to slow cooker, break up with a fork, add remaining ingredients and cook 7-9 hours on low.
Stove Top Method: Cooked ground over medium-high heat, breaking up with a fork as it cooks. Drain off any fat. Add the remaining ingredients and cook for 10 minutes or until heated through.