noun
one serving; one pile; one helping
Refers to a single portion or heap of something, often food served on a plate or in a bowl. The counter 盛り is used for servings, and 一盛り emphasizes one such portion.
刺身を一盛りください。
One serving of sashimi, please.
彼はご飯を一盛りぺろりと平らげた。
He polished off one helping of rice in no time.