This is the 6119th most frequent Japanese word.
オムカレー
"Omucurry" is a dish combining omelet and curry over rice.
In this sentence, 'オムカレー' is used as a noun referring to a popular Japanese dish comprising omelet and curry.
お昼にはオムカレーを食べました。
I ate an Omurice Curry for lunch.
Here, 'オムカレー' again acts as a noun, specifying the dish that contributes to the popularity of the restaurant.
オムカレーがメニューにある店は人気があります。
Restaurants with Omurice Curry on their menu are popular.
In this usage, 'オムカレー' is referenced as the subject of the method/style being described.