1In 10-inch skillet, cook beef over medium-high heat 5 to 7 minutes, stirring occasionally, until thoroughly cooked; drain.
2Spray 3 1/2- to 4-quart slow cooker with cooking spray. In slow cooker, mix beef and remaining ingredients except toppings.
3Cover; cook on Low heat setting 7 to 9 hours. Garnish individual servings with toppings.