Three Great Things to Do in Tucson Today: Tuesday, Dec. 18

City of Gastronomy and SAZAND December Mixer. Here's your chance to learn about what Tucson is doing with its UNESCO City of Gastronomy designation from members of the non-profit "Tucson City of Gastronomy" and the "Southern Arizona Academy of Nutrition and Dietetics." 10 percent of all drink and food sales at the bar will be donated to the organizations.…