缶かん飯めし

noun

canned meal; canned rice dish

Refers to a meal, typically rice-based, packaged in a can. Often associated with military rations or emergency food supplies.

• 自じ衛えい隊たいの缶かん飯めしは非ひ常じょう食しょくとしても人にん気きがある。

  The Self-Defense Forces' canned meals are also popular as emergency food.