I am not really one for holidays, but this service is, and there may be a more official one created by mods later, but if not, …who would you invite?
Batgirl ,Harley Quinn ,wonder woman, Damian Wayne, Batman, cheetah, aries, joker, that should make for an interesting meal.
Green Arrow from the 70s comics; I always wanted to taste his famous Chilie.
Alfred so I don’t have to do a darn thing!
Flash for a quick clean up.
Tim Drake and Kon (pre-52) so they could come out over dessert.
Harley for some laughs.
And def Damian for some holiday discord.
Probably Shazam. He would really fun to talk to.
Martian Manhunter, Superman, Barry Allen, John Stewart, Nightwing, Starfire, Wonder Woman, Shazam, Zatanna, Saint Walker
I prefer small gatherings in general, so I’d go with (no continuity restrictions):
-Lois, Clark and Jon
-Bruce, Selina and Damian
-Mera and Arthur
Alfred is in the kitchen with help from Larry Trainor, Ma Hinkle and Martha Kent’s on dessert.
Jon and Damian are in charge of taking out the trash. Knowing Damian he’ll tell Jon to fly it over to LexCorp Tower and dump it in Lex’s office. Or on the roof. Lex is a jerk.
The whole Batfamily because I want to see them interact And Wally for some laughs and someone already mentioned quick clean up!
Oliver or Clark for me, maybe Selina
well this year Hecate, the evil dark magic goddess could use a hug, but also Krypto because Thanksgiving and super dogs go together
plus Clark and Kara, to see who can open a corked bottle of booze the fastest
Clark, Diana, Kara, Bruce, Dick, The super sons, Jessica Cruz, Vixen
And MARSHMALLOW PETE! (He’s a fan creation from @Vroom. See the Fan Creation section, thread title “DCU’s Member Encyclopedia of Superheroes & Villains”.)
Pete would be happy to attend! You know what side he’ll bring
Diana Supergirl Batgirl
I would invite Batgirl and Nightwing!!! The romance!!!
The flash Wally or Barry either one
Nightwing, Flash(Barry or Wally)or Green Lantern(anybody except Guy).
I’d just hope they wouldn’t leave right after eating(especially Flash)