Storage & ReheatingThe chicken fajita mix and black beans will both keep in the fridge for up to 4 days, or in the freezer for up to 3 months, in separate airtight containers. The guacamole is best made fresh and kept separately — press plastic wrap directly onto the surface to slow browning, and it'll keep in the fridge for up to 2 days. Reheat the chicken and beans gently in the microwave or a pan until piping hot, and add the guacamole and fresh garnishes only once reheated.