Christmas food in Mexico is the result of cultural syncretism and diversity. Let us tell you a bit about its beginnings and the best seasonal dishes to celebrate it. Christmas History Facts in Mexico The holiday season in Mexico peaks on Christmas Day, which is celebrated on December 25 and like all national celebrations, traditional food christmas foods its appearance with the prominence it deserves. It’s important to remember that before the Colony, in America we didn’t have certain foods that are traditional today, such as pork.