A boxed lunch sold at convenience stores; comes in many varieties and is often microwave-heatable.
今日の昼ごはんはコンビニ弁当で済ませた。
I had a convenience-store bento for lunch today.
コンビニ弁当は新商品が頻繁に出るので飽きにくい。
Convenience-store bentos often have new products, so it's hard to get bored of them.
健康のためにコンビニ弁当の栄養表示をチェックしている。
For my health I check the nutritional labels on convenience-store bentos.