The lowly potato is quickly climbing the trendy food ladder. Burger Business says the quick-service chains are not adding “new creative entrees” to their menus, except when it comes to fries. Let’s face it: potatoes are cheap to buy and profitable to sell. To make even more money selling them, restaurant owners are adding spices (even McDonald’s is testing this concept) and topping them with gravies, sauces and dressings. Part of the allure might be driven by the fact that, according to a Wall Street Journal story about potato consumption, we’re no longer buying or cooking as many potatoes at home. So when we dine out, we want our potatoes to be exotic and packed with flavor.