Lacey Hamilton is pretty popular in the town of Palos Hills -- so it's only fitting that the actress behind the quirky "Awkward" mother would commemorate her birthday with some of her MTV cast members.

Nikki Deloach -- who turned 36 on September 9 -- celebrated her big day with fellow SoCal gals Molly Tarlov and Barret Swatek. But the shindig was a bit more subdued compared to that joint kids/parents New Year's Eve bash on the long-running comedy series -- or Aunt Ally's unforgettable wild wedding.

"These two ladies gave me the best post-birthday dinner ever," the actress captioned the wine-filled Instagram snapshot above. "[Honestly] just seeing their faces made my week." Cuties, that's for sure!

Meanwhile, Barret added the Instagram photo below with her "ladies" -- in it, she can be seen making a kissy face at her on- and off-screen pal while Moll is striking her best Sadie Saxton "you're welcome" face.

Offer your belated birthday wishes for Nikki in the comments -- and be sure to catch her, and the rest of the "Awkward" gang, every Monday at 9/8c!