Where some secret menus come about by consistent customer requests throughout the years, Panera just made this one up on their own (it was "developed" by Scott Davis, Panera Bread's Chief Concept Officer) and tested in New York last November.
While you won't find mention of the Hidden Menu at any Panera location, you can rest assured that the employees at every location will know exactly what you are talking about when you order from it, which would be hit or miss if you tried the same at Starbucks or McDonald's.
It's more like a high-protein, low processed-carbs menu.
Here's what you'll find on Panera's Hidden Menu (it really should be called the "Power Menu;" they use it as a buzzword in the name of every dish on the menu):
Power Breakfast Egg White Bowl with Roasted Turkey - Sliced roasted all-natural turkey, egg whites, warm baby spinach, roasted peppers, and basil pesto.
Power Mediterranean Chicken Salad - A salad made with sliced, all-natural chicken, baby spinach, romaine lettuce, tomatoes, applewood-smoked bacon, diced eggs, fresh-squeezed lemon juice, and extra virgin olive oil.
Power Mediterranean Roasted Turkey Salad - A salad with sliced, all-natural roasted turkey, baby spinach, romaine lettuce, tomatoes, red onions, kalamata olives, fresh-squeezed lemon juice, and extra virgin olive oil.
Power Chicken Hummus Bowl - Sliced all-natural chicken, with cilantro jalapeno hummus, baby spinach, cucumbers, diced tomatoes, red onions, fresh-squeezed lemon juice, and fresh-chopped cilantro.
Power Steak Lettuce Wraps - Sliced top-sirloin, leaf lettuce, cucumbers, diced tomatoes, red onions, basil pesto, and fresh-squeezed lemon juice.