During natural calamities nutritious, safe, and ambient storable meal is issue of immense concern. Recently Joint FAO/IAEA programme of nuclear techniques in Food and Agriculture has undertaken Coordinated Research Project (CRP) where a product ‘Stuffed Baked Food (SBF)’ was developed in India. SBF consists of partially fermented multigrain dough enriched with 5% saturated fat and stuffed with flour of roasted chick pea; boiled and peeled potato (mashed); and cooked chick pea split (mashed) with spices and salt. Stuffed lobe was convection baked, vacuum packaged and gamma irradiated (15 kGy). The product was well acceptable after prolonged storage at ambient temperature while retaining its quality attributes. SBF can also be useful for other targets like defence personnel, school lunch programme, expeditions, and astronauts. Mutation analyses in models including human TK6 lymphoblast cell line at genes tk^+/- and hprt⁺; and bacterial systems [Escherichia coli MG1655 cells (rpoB gene); and Ames strains (TA 100 and TA 102)] endorsed its genotoxic safety.