Deep-dish pizza is a style of pizza that originated in Chicago in the 1940s. Unlike traditional pizzas, it features a thick crust that is baked in a deep pan, resembling a pie. This allows for a generous amount of toppings, including cheese, meats, and vegetables, all layered beneath a thick layer of tomato sauce. The crust is typically made from a dough that includes cornmeal, giving it a unique texture and flavor. Deep-dish pizza is often served in slices that are hearty and filling, making it a popular choice for those looking for a substantial meal.