Broiled eel (kabayaki) seasoned with sauce, served over rice in a lacquered box (unajū). Preparation and serving styles vary by region and restaurant.
土用の丑の日に家族で鰻重を食べに行った。
On Midsummer Day of the Ox we went as a family to eat unajū (eel over rice).
この店の鰻重は香ばしくてタレがちょうどいい味付けだ。
This restaurant's unajū has a nice smoky flavor and the sauce is perfectly seasoned.
上と並では鰻の量が違い、上は鰻が多いことが多い。
The 'jo' (premium) and 'nami' (regular) differ in the amount of eel; 'jo' usually has more eel.