Ashton Kutcher's Corny Christmas with Mila Kunis

Ashton Kutcher is gettin' super serious with Mila Kunis ... or so it seems ... 'cause just days after he filed for divorce from Demi Moore, he took Mila to spend Xmas with his fam ... in Iowa.

Ashton and Mila were spotted in Kutcher's home town of Cedar Rapids this weekend, munching down on some Fro Yo at a local shop ... this according to People.com.

The timing is interesting -- considering the actor JUST filed his divorce papers last week, more than a year after he and Demi split up. It appears Ashton's trying to clear the decks for his newer, younger, more exciting relationship.