JENNA USHKOWITZ is prepping for pie.

    The actress, known best for playing Tina Cohen-Chang on Fox’s “Glee,” will join the Broadway musical “Waitress” on July 29, producers announced Tuesday. She will take over the role of the shy and skeptical server Dawn while Kimiko Glenn (who is currently filming Netflix’s “Orange Is the New Black”) takes a leave of absence from the Brooks Atkinson Theater show.

    “Waitress,” the musical adaptation of the 2007 film, follows Jenna (Jessie Mueller), a pregnant diner waitress in the Deep South who makes extraordinary pies but is trapped in an abusive marriage. The Diane Paulus-directed production features a score by Sara Bareilles and is the first-ever Broadway musical with an all-female creative team.(SD-Agencies)