cooked rice
food; meal
「御飯」 has another reading with different meanings.
food
おまんまの食い上げになるぞ。
You'll lose your livelihood, you know.
おまんまを食べてから出かけなさい。
Eat your rice before you go out.
こんな仕事じゃおまんまにありつけないよ。
With a job like this, I can't even earn my meals.