Portillo's Inc. owns and operates fast casual restaurants in the United States. The company offers Chicago-style hot dogs and sausages, Italian beef sandwiches, char-grilled burgers, chopped salads, crinkle-cut French fries, homemade chocolate cakes, and chocolate cake shake. It offers its products through its website, application, and certain third-party platforms. Portillo's Inc. was founded in 1963 and is based in Oak Brook, Illinois.