Heidi Klum and Seal got their family together for a Christmas Eve dinner of sushi and sake (for the adults) at Matsuhisa in LA and the divorced parents were on their best behavior, in the spirit of Xmas!

The kids all wore their hair in cornrows, which was adorable, and as the family left the five-star eatery, they all kissed Seal goodbye -- including Heidi!

The supermodel mom seems to be on her own this holiday season. Rather than galavanting topless in St. Barth with boy toy Vito Schnabel, it appears Klum, 42, is flying solo -- with rumors the young art dealer, 29, is romancing Fifty Shades star Dakota Johnson, 26. Will she be able to win back her man before the new year?