Green Chili Day is observed worldwide every December 16, celebrating a variation of chili con carne made with green chili peppers. This dish, known as chili verde, is particularly popular in New Mexico cuisine and is characterized by its use of New Mexico chili or Hatch chili, along with pork, roasted green chili peppers, green tomatillos, garlic, and chicken broth. The celebration encourages people to enjoy chili verde at restaurants, cook it at home, or host potluck dinners and cook-offs. Participants are also encouraged to share their experiences on social media using hashtags like #GreenChiliDay and #NationalGreenChiliDay. While the origins of Green Chili Day are unclear, it serves as a festive occasion to appreciate this flavorful dish.