Once Upon a Time‘s Lana Parrilla will assume another role in the forthcoming season of the ABC series. The original cast member is set to step behind the camera and make her directorial debut. Show co-creator Adam Horowitz took to Twitter on Tuesday night to share the news, teasing us with an image of a script page from season seven’s 17th episode titled “Chosen.” Under the title it says “Written by Paul Karp & Brian Ridings” and below that it says “Directed by Lana…