Joe Jakubowski, Mitch Haba and Audra Jantz, three-fourths of the writing team behind “With Extra Onions,” the latest Planet Ant student sketch show, visit the After Improv Podcast this week. The trio talks about the process of writing and producing the show and how it differed from what we went through doing the same thing. Best part — you still have time to check out the show this weekend. But listen to this first! * Variations on a theme * Meet the writers * Audra plays * An onion by any other name * The process * An established municipality * Jell-O wrestling * Dirextor * The actors * Auditions * Casting