But do you know about the Whataburger secret menu items? When anything is a “secret” menu item, obviously you’re not just going to find these items on the regular menu board when you visit one of their restaurants. Whataburger Has Deliciousness on Their Secret MenuWhataburger will take care of your hunger issues, but with these secret menu items you might be stopping in for food more often than ever before. Let’s look at the Whataburger secret menu items so you know what to order next time. PSST: Check Out The Whataburger Secret Menu The items are available year round, but make sure you're grabbing breakfast items and lunch items during those respective times.