About 100 yen for 100kcal! Just right when you want another "Hokkaido potato gratin" for one person
I found a gratin that is easy for one person to pick up, with 100g per piece and about 100kcal for almost 100 yen. "Hokkaido potato gratin-shrimp and 4 kinds of cheese-" "Hokkaido potato gratin-bacon and 4 kinds of cheese-".