In August 2006, he was loaned back to Serie B for Cesena, as part of the deal that Atalanta signed Adriano Ferreira Pinto.
On 31 January 2007 he was sub-loan to Piacenza Calcio, as part of the deal that Cesena signed Alessandro Pellicori.
In July 2007, he was loaned to Serie B newcomer Grosseto, where he finally became a regular starter and scored 9 goals.
On 9 July 2008, he was sold to fellow Serie A side Cagliari in co-ownership deal, in a four-year contract, for €1.8 million fee.
In the Europa League qualifying round match against Bosnian club Široki Brijeg in August 2013, Lazzari scored from the halfway line as Udinese won 4–0.