Jennifer Garner spent Thanksgiving in Montana with Ben Affleck and the kids, according to the source

They finalized their divorce last month.

But Jennifer Garner, 46, did not stop her from spending Thanksgiving with Ben Affleck, 46.

"Jen, Ben and the kids were in Montana for Thanksgiving," a source told People.

"This has been planned for a long time," according to the insider, who also added, "They are always celebrating a great family vacation together."

"The whole family spent Thanksgiving together and they cooked," continued what the branch called "a friend of the old couple".

Ben and Jennifer finalized their divorce in October after being separated for more than three years.

The couple shares three children, Violet, 12, Seraphina, 9, and Samuel, 6.

Jennifer turned out to be a big fan of history by donning the costume of the first English settlers during a hilarious reminder posted on Instagram to celebrate Thanksgiving.

Jennifer was joined by British actress Claudia Sermbezis, dressed as a turkey, while she sat down for dinner together.

Jennifer subtitled this funny picture: "So many recipes floating for Thanksgiving, but what about a new tradition?

& # 39; Invite a friend from a foreign country (in this case, England). Compose the traditions of Thanksgiving that she must follow. I dressed in turkey for my darling Brit and I scrolled through the cobblestone streets of Charleston, West Virginia. & # 39;

She then suggested that Thanksgiving gifts might be a fun way to celebrate. "Thanksgiving is for family and friends, food and football – but do not forget FUN. XXX. Happy Thanksgiving! & # 39;