From Halopedia, the Halo wiki
The MK71 emergency food preparation station is a piece of United Nations Space Command equipment, used to prepare food in battlefield conditions. It has a capacity of 12 gallons, and runs on 220 volts. The station can be powered by field-based generators such as the PG000E Portable Electricity Generator, or other power sources.
Crates containing the device were seen throughout Mombasa during the Battle of Mombasa, and also shipped to Installation 05 on the UNSC In Amber Clad.
A decal for the MK71 can be found applied as a label on the AV-49 Wasp in Halo 5: Guardians.
The label on the Wasp in Halo 5: Guardians.