Everyone knows eating out can be dicey for dieters, or really anyone who wants to keep calories in check. Making things trickier: Not all diet-busters are burgers — even a soup-and-salad combo can hide an entire day's worth of calories. The good news? New menu labeling guidelines have made calorie counts more accessible than ever at the nation's largest chains. We've hacked some of the unhealthiest meals and menu items out there to figure out easy ways to skimp on calories — but not on flavor.