Pizza is a popular dish consisting of a flatbread base topped with tomato sauce, cheese, and other ingredients. The crossword solutions for the term 'pizza' are PIE (3 letters) and HUT (3 letters). PIE is a type of pastry dish that is usually filled with a sweet or savory filling, while HUT is a term used to describe a small, simple structure, often used as a dwelling. Both terms can be used to refer to pizza, as a pizza is a type of PIE, and many pizza restaurants are referred to as pizza huts.