noun
mega-sized portion; mega meal
Colloquial term for an extremely large serving of food, often used in restaurants or food challenges. The prefix メガ (mega) emphasizes the size beyond normal large portions.
あのラーメン屋のメガ盛りは、普通の３倍あるよ。
That ramen shop's mega-sized portion is three times the normal size.
メガ盛りチャレンジに挑戦したけど、食べきれなかった。
I tried the mega meal challenge, but I couldn't finish it.
特盛り is a common term for an extra-large portion, but メガ盛り implies an even larger, often exaggerated size.
Compound of メガ (mega, from English 'mega-') and 盛り (もり, 'serving' or 'portion'). The prefix メガ is used colloquially to indicate an extremely large amount.