Plants and plant resources have become the focus of researchers in the developing countries because of the high cost of imported animal feed ingredients as sources of protein. In this study, the evaluation of the nutritional values and phytochemical composition of Moringa oleifera and Cortinarius species found in a Western State in Nigeria was carried out. Proximate analysis, mineral contents, phytonutrient composition and vitamin contents were carried out according to standard methods. In proximate analysis, protein and crude fat contents were significantly higher in M. oleifera than in the Cortinarius species while the values of moisture content, crude fibre, ash content and carbohydrate were significantly higher in Cortinarius species than in the Moringa oleifera. All values of phytonutrients detected were significantly higher in M. oleifera than in Cortinarius species. There were significantly higher values of calcium, potassium, phosphorus in M. oleifera than in Cortinarius species while the values of iron and zinc vice versa. The study indicates that both Moringa oleifera and Cortinarius species can be used as feed supplements. However, the combination of both Moringa oleifera and Cortinarius species as feed supplement may serve as source of balance diet.