The Mexican striker has started just 10 Premier League matches this season, and has featured a further seven times from the bench.
"It is frustrating," Hernandez told The Sun. "All the players in the world want to start every single game, every week. Of course any player wants that.
"I'm happy to be at this club but I'd love more games. My attitude is that even when the gaffer wants me to be on the bench I'm going to do my best.
"I have to respect the club, Manchester United. But of course I would like to start more."
Hernandez has scored 16 goals in all competitions this season.