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.
自衛隊の缶飯は非常食としても人気がある。
The Self-Defense Forces' canned meals are also popular as emergency food.
缶詰 is a general term for canned goods, while 缶飯 specifically refers to a canned meal, often a complete rice dish.
Compound of 缶 (kan, 'can') and 飯 (meshi, 'meal' or 'cooked rice').