noun
normal-sized portion; regular serving
Used at restaurants, especially for rice, noodles, or set meals, to indicate the standard portion size, as opposed to 大盛り (large) or 小盛り (small).
ラーメンは普通盛りでお願いします。
I'll have the regular-sized ramen, please.
普通盛りでも結構量が多い。
Even the normal portion is quite a lot.
Compound of 普通 (normal) and 盛り (serving, portion).