he interior of the church is modelled on the Tuscan order with traces of Doric order. The titular painting depicts the Transfiguration of Jesus and is the work of Mattia Preti dating from 1698. The same artist also painted two works depicting St Luke and St Matthew, respectively. Other notable works include Our Lady of the Rosary by Alessio Erardi dating from 1702. There are also works by Francesco Zahra depicting the Guardian Angels dating from 1757. Giuseppe Hyzler painted Our lady of Mount Carmel in the mid 19th century. One can also find a painting of the Holy Cross by Giuseppe Calì dating from 1891. Other artists such as Giuseppe D'Arena, Lazzru Pisani and Giuseppe Calleja. The paintings in the apse are the work of Ignazio Cortis dating from 1873 while that on the ceiling and the dome are the work of Giuseppe Cali.