Spanish omelette only has eggs potato and optionally onion. But no green peppers!
Didn't realize there was singular tortilla recipe that applied to Cataluña, Andalucía, Galicia, Extremadura, the capital and other regions. Guess I'll have to let the Spanish side of my family know.
Just like breakfasts in the US south are indistinguishable from breakfast in the New England States, or Pacific states. /s