It was bound to happen, I'm just sorry I didn't think of this idea first: a "taco truck" that sells healthy, organic food. "Sacrilege!" you're probably saying but then when you think about it some more you have to admit it is a pretty good idea, especially in health-conscious L.A. But those expecting taco truck prices may be a little turned off by the Green Truck's Whole Food-esque prices. The "Create Your Own" salad, wrap......