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.
スパニッシュオムレツを作ってみました。
I tried making a Spanish omelette.
Literally 'Spanish-style omelette', used when describing the dish in a Japanese context.
このカフェのスペイン風オムレツは絶品です。
The Spanish-style omelette at this café is exquisite.
From Spanish 'tortilla', used by enthusiasts or in authentic Spanish restaurants. May be confused with Mexican tortillas.
Without context, トルティージャ can refer to Mexican tortillas. Clarify with スペインの (Spanish) if needed.
スペインのトルティージャはじゃがいもが入っています。
Spanish tortilla contains potatoes.