In a large bowl, combine the first eight ingredients. Pour half into a 6-qt. slow cooker., In a large skillet, heat oil over medium-high heat. Brown chicken in batches on both sides. Transfer to slow cooker., Pour remaining Alfredo mixture over chicken. Cook, covered, on low 3-4 hours or until chicken is tender (a thermometer inserted in chicken should read at least 165degrees)., Arrange biscuits on an ungreased baking sheet; sprinkle with cheese. Bake according to package directions., Remove chicken from slow cooker. Shred with two forks; return to slow cooker. Serve chicken mixture in ramekins or shallow bowls topped with a biscuit.