Chicago Deep Dish is a style of pizza that originated in Chicago in the 1940s. It features a thick, buttery crust that is baked in a deep pan, creating a pie-like appearance. The crust is often filled with layers of cheese, toppings, and a chunky tomato sauce, which is typically added on top. Unlike traditional pizzas, which have a thin crust, Chicago Deep Dish is known for its hearty and filling nature. The pizza is usually cut into wedges and served in slices, making it a popular choice for those looking for a substantial meal.