Disposal of municipal composts to agriculture can provide essential nutrients to the plants, whereas a rapid increase in human activities has contaminated municipal composts with many toxic heavy metals such as Cd, Pb, Ni, Hg, etc. Therefore, the present study was designed to assess the effects of municipal compost amended soil on growth performance and heavy metals (Cu, Zn, Cd, and Pb) accumulation especially in the edible parts of vegetable (bean; Phaseolus vulgaris L., palak; Spinacia oleracea L.) crops under mountain ecosystem. The tested vegetables were grown in soil amended with municipal composts produced in Kullu valley of Himachal Pradesh, India as 0%, 20%, 40%, and 60%. The results showed that Cu, Zn, Cd, and Pb concentrations in edible parts of both bean and spinach increased significantly (p<0.05) with increasing application rates of municipal composts in soil. The accumulation of Cd and Pb was found higher in spinach as compared to the bean. A similar and an opposite trend were also recorded for Cu and Zn. The concentrations of all the heavy metals in both the tested crops grown on soil amended with municipal compost had exceeded their safe limit as described under PFA acts 1954. The results further showed that growth of both the bean and spinach measured in terms of numbers of leaves, heights, dry weight, and yield were found to be increased significantly with the increasing application rate of municipal compost. From the present study, it can be concluded that the application of municipal composts can improve crop yield but may not be a suitable option for disposal in mountain agriculture as it poses a serious risk to the safety of vegetable crops. The present study further suggests that the lower application rate i.e., <20% of municipal compost should be tested for agricultural use in the future.