AD from residual biomass is of great interest to reduce GHG emissions from energy production from fossil fuels. Specifically, methane from AD can be used as a substitute for natural gas and for electricity or thermal energy production in generators or boilers. This work studied the use of Banana Crop Residues -BCR- (rachis -R- and pseudostem -P-) and the OFMSW as substrates in the AD process through the execution of BMP tests. Pretreatment of BCR by steam explosion (R was pretreated at 180 and 200°C for 10 minutes and P was pretreated at 160 and 180°C for 10 minutes) and its co-digestion with OFMSW were evaluated as a strategy to increase biogas production. This study showed a methane yield of 363.3 and 202.2 LCH4/kg VS for raw P and R, respectively, and 534.52 LCH4/kg VS for OFMSW. The biodegradability of the mixture of raw OFMSW-P-R increased by 25% when steam pretreatment was performed at 180°C for both R and P. On the other hand, OFMSW showed a high biodegradability which favored the co-digestion process. The highest methane yield was obtained by the mixture of OFMSW-P180-R180 with 457.47 LCH4/kg VS equivalent to 201.85 kWh/t of wet biomass. Sulfur analysis in a different kind of food waste were carried out. Arugula, garlic, chicken, fish, beef, and broccoli had the highest sulfur content with 1.9%, 0.97%, 0.92%, 0.88%, 0.88%, and 0.75%, respectively. The pretreatment of BCR through steam explosion and its co-digestion with OFMSW can be a solution for increasing biogas production. In this way, the use of this organic matter can be improved instead of leaving it in the soil.