My 21 year old son and I are at the Palace in San Francisco. Arrived here earlier today from Moss Beach (Half Moon Bay area) where we had a remarkable time and remarkable meals. Started our afternoon with lunch at Yank Sing. Fabulous dim sum, as always. Then, after watching the end of the game, took a cab to the Buena Vista so I could introduce my boy to the lovely albeit touristy Irish Coffee. Then we had the best time! Walked back to the hotel via North Beach and Chinatown, and we're hungry. Love the Italian in North Beach. But where to eat in the Tenderloin? Great sit down Mexican? Other? Thanks.