A rice ball made by shaping cooked rice (often with a filling or wrapped in seaweed); commonly eaten as a snack or in lunch boxes (same as onigiri).
朝ごはんに梅のおむすびを一つ食べた。
I ate one plum rice ball for breakfast.
遠足のお弁当にはおむすびが定番だ。
Rice balls are a classic choice for picnic lunches.
コンビニでおむすびを買って昼に食べた。
I bought a rice ball at the convenience store and ate it for lunch.
この店のおすすめは鮭のおむすびです。
The shop's recommendation is the salmon rice ball.