Mama June -- TLC's in My Rear View ... I'm Back in L.A. Pitchin' Shows (VIDEO)

Mama June does not scare easily ... she's back in L.A. pitching new TV shows starring her and her brood, scoffing at veiled TLC threats.

It's June's second trip to La La Land after "Here Comes Honey Boo Boo" got the ax, despite TLC's warning she's not allowed to pitch new shows until May.

June -- who is fresh out of the hospital after a bout with pneumonia -- blew into LAX Thursday and told us she's meeting more producers. We're told 2 projects include a relationship show involving her and Sugar Bear, and a "Beverly Hillbillies" type show.