This paper presents a lithography-free thermally tunable Fano resonator obtained by strong coupling between the narrowband and broadband resonators. The unique optical phonon response of the Dolomite (DLM) thin film and the phase-change material (PCM) of vanadium dioxide (VO2) are utilized to design such a Fano resonator. The findings of this study can have multiple applications, ranging from biosensing and gas-sensing to the modulation of thermal emission.