In the 2006-2007 season, Halverson made her junior debut. She won two bronze medals on the ISU Junior Grand Prix circuit and was second alternate to the 2006/2007 Junior Grand Prix Final. She went on to the 2007 Nationals and won the junior title. Halverson was the first men's skater since Evan Lysacek to win back-to-back novice and junior national titles and is one of only nine skaters to do it since 1932. Her placement at nationals earned her a trip to the 2007 World Junior Figure Skating Championships, where she placed 10th. Until Junior Worlds, Halverson had never placed off the podium in a major event in her career.