Enter the land of BIG food and leave your diet at home, because even the salads are heaped with cheeses and dressings that are too yummy to pass up. Sandwiches range from traditional burgers to the creative, such as chicken breast with cheeses and rosemary. The signature side is a heap of homemade potato chips—like everything else, these chips are really big. Wash it all down with a selection or two from the list of microbrews. The only thing that isn't big there is the tab. $$. 1805 E. Carson St. (South Side), Pittsburgh. Phone 412-431-7433. http://www.fatheads.com.