Pi Pizzeria In Kirkwood 10935 Manchester Rd, Saint Louis, MO63122 Pi Pizzeria is one of Kirkwood's newest pizza parlors, but it has rapidly become a favorite for many families. It is the…More fourth such parlor in the St. Louis area, but it is the nicest of the four. Why is this restaurant so popular so quick? Great food, affordable prices, excellent service and high quality ingredients in every pie. Your family would surely enjoy this culinary adventure.