In 12-inch skillet, cook ground beef and onion over medium heat for 8 to 10 minutes or until beef is thoroughly cooked, stirring frequently. Drain.
In 3 1/2- to 6-quart slow cooker, combine ground beef mixture and all remaining ingredients except almonds; mix well.
Cover; cook on low setting for 3 to 4 hours. Stir in almonds before serving.