Kashama was recruited by Boise State, Marshall, Rutgers and Western Michigan, before eventually choosing the latter. He enrolled at the university in January 2004. He redshirted in his true freshman season in 2004. During his redshirt freshman season in 2005, he started off on the offensive scout team before being activated. After playing at tight end for Western Michigan in 2005 and 2006, he converted to defensive lineman in 2007. In his first season at the position he played in all 12 games and recorded his first career sack against Temple on November 24. Overall in his junior and senior seasons which were spent playing on the defensive line, he had 14 tackles along with the one sack.
