ChowChild (just turned 18! Do I need to change his name?)is still fuming that we weren't able to attend the picnic Sunday so I am trying to placate him with promises of Chowhound's best recommendations in the Mission Saturday after we see play @ The Marsh (on Valencia). Those of you who have met ChowChild know he has a unusual palate for a high school kid. His Lafayette classmates think Taco Bell is authentic Mexican cuisine. ChowChild would never patronize Taco Bell. He grew up savoring Fruitvale taco trucks and restaurants. His favorites are al pastor and carnitas but he'll try anything.