This study examined the relationship between environmental disclosure and financial performance of listed food and beverage companies in Nigeria from 2015 to 2024. The research was motivated by growing global concern for non-financial reporting and the need for credible disclosure practices by firms. Specifically, the study scrutinized how environmental protection expenditure disclosure, waste disposal and remediation cost disclosure, and prevention and environmental management cost disclosure influence financial performance indicators such as return on equity (ROE) and return on capital employed (ROCE). The study adopted an ex-post facto research design and relied on secondary data obtained from the annual reports of ten listed food and beverage companies on the Nigerian Exchange Group (NGX). Panel data covering a ten-year period were analyzed using fixed effect and random effect. Findings revealed mixed results: while certain environmental cost disclosures (such as waste disposal and protection expenditures) showed positive but insignificant associations with financial performance, prevention and environmental management costs had a negative and significant effect on ROE.  It was recommended that environmental disclosure should be made compulsory for firms with stiffer sanctions for non-compliance. Also, there is need for regulatory authorities in Nigeria to beam a searchlight on disclosure practices of Cooperative Organizations.