It's time to ditch the protein and reach for the carbs in this over-the-top tour of foods to satisfy any carb craving. A trip to California turns up a pizza topped with pasta and a grilled cheese filled with spaghetti. And a doughnut shop in Portland takes mashed potatoes and fries them into fritters. In Chicago, a pretzel joint stuffs its knots with cakes and cookies, proving that no carb is safe from more carbs.