Despite the devastating effects of out-of-pocket healthcare expenditures on households' financial outlays, which potentially stiffe household resources needed for food consumption, the health financing program-food insecurity nexus is yet to receive much needed attention in the literature. This study makes a significant contribution by investigating the effect of health financing program, conceptualised as membership of a National Health Insurance Scheme, on household food insecurity using the food insecurity experience scale (FIES) and several quasi-experimental methods. Using data from the seventh round of the Ghana Living Standards Survey, our endogeneity-corrected results indicate that membership of a health financing program can contribute to reduction in household food insecurity. The results are robust to alternative conceptualisations of food insecurity and different quasi-experimental methods. The effect of health financing programme membership on food insecurity is more pronounced among urban and female-headed households. Our findings further point to household savings as an important channel through which membership of health financing program reduces food insecurity.