Translation guide
A Spanish omelette is a thick omelette containing potatoes and often onions, known in Spanish as tortilla española. In Japanese, it is usually referred to by its Spanish name or described as a Spanish-style omelette.
Refer to the Spanish dish made with eggs, potatoes, and often onions.
The most common direct translation, widely understood in Japan.
I tried making a Spanish omelette.
Literally 'Spanish-style omelette', used when describing the dish in a Japanese context.
From Spanish 'tortilla', used by enthusiasts or in authentic Spanish restaurants. May be confused with Mexican tortillas.
The Spanish-style omelette at this café is exquisite.
Spanish tortilla contains potatoes.