The clock strikes noon, and the downtown lunch options are endless. Or so it seems. Those in the know make a beeline for Camila's. Step into the stark white dining room, and immediately your ears are flooded with the silky patois of Brazilian Portuguese. Famished tourists come here to dish themselves juicy pork chuletas doused in garlic oil and the pipino salad littered with crisp cucumber curve, red onion, and punchy vinaigrette. Meanwhile, the business crowd shoves its way in to dine, devour, and dash. The sound of cell phones filling with emails and buzzing against white metal tables hums in the background, but take your time. Camila's all-you-can-eat buffet ($14.95 per person) offers no fewer than 20 dishes that are continually replenished throughout the bustling lunch service. Be sure to fill one plate with carne moída: a picadillo-like stew studded with olives and sweet green peas permeated by the fragrance of smoky paprika. The place's black beans are a master class in legumes; each bite comes with meaty bits of pork knuckle and thin ovals of sliced sausage. Yes, the urge to rush back to the office or beach grows more powerful by the moment. But resist! Grab a cup of rice pudding dusted with cinnamon and dotted with coconut strands. Now you've enjoyed lunch like a proper Paulista.