Welcome to Gia’s Pizza. Located in both historic downtown O’Fallon, IL, Gia’s Pizza serves up Pizza, Salads, Sandwiches, and Wings. At Gia’s, every dish is created using only the finest, all natural ingredients. Our cooks use real cheese, real meat and fresh vegetables. We have always offered the freshest of salads & wings that can’t be beat by any of our local competition in taste or quality.