A Shanghai restaurant has captured attention on mainland Chinese social media for launching a special dish of stir-fried tomato and scrambled eggs at an exorbitant price of 520 yuan (US$75), triggering a heated discussion.The dish itself is among the most common, affordable household food items in the country, containing ordinary ingredients – tomatoes and eggs.But the dish served at Jinlong Dabianlu Restaurant in Hongkou district in downtown Shanghai is sold at 520 yuan, dozens of times more...