On Thursday, March 23 and Friday, March 24, feast on tacos and margaritas for a good cause at Santa Rosa Taqueria (301 Pennsylvania Ave., SE). Chefs/TV personalities Spike Mendelsohn and Aarón Sánchez will lead the event to raise money for the Culinary Diplomacy Project, a non-profit dedicated to bridging cultural gaps through food. Tickets are $110, and