1Spray 12-inch nonstick skillet with cooking spray. Cut beef into 1/2-inch cubes. Cook beef and onion in skillet over medium-high heat 7 to 9 minutes, stirring occasionally, until beef is brown; drain.
2Mix beef mixture and remaining ingredients except cheese and cilantro in 3 1/2- to 4-quart slow cooker.
3Cover and cook on Low heat setting 7 to 9 hours. Top individual servings with cheese and cilantro.