He told L'Equipe: "I have wanted to play more. From the beginning of the season I have spent more time on the bench than on the field, but I will continue fighting to get the minutes they give me."
Benzema was quick to stress he bore no grudge against Mourinho, however.
He added: "He's always behind me and never lets me give up.
"When things go well, he tells me regularly and when you are not doing so well he tells me it's okay.
"It's all to keep me up to a high standard."