noun
a type of Japanese salad with fish and vegetables in a mustard-miso dressing
A traditional dish where fish and vegetables are dressed with a mixture of crushed mustard leaves, sake lees, miso, and vinegar. The term is specific to Japanese cuisine.
青ぬたは、魚と野菜をからし菜の和え衣で和えた料理です。
Aonuta is a dish of fish and vegetables dressed with a mustard leaf sauce.
ぬた is the general term for dishes dressed with a mustard-miso-vinegar mixture; 青ぬた specifically uses green mustard leaves (からし菜) in the dressing.
The name combines 青 (green) and ぬた, a type of dressing. The exact historical origin is uncertain, but it refers to the green color from the mustard leaves used in the dish.