While the classic Tortilla Española features just eggs, potatoes, and onions, modern variations add exciting flavors. Some include chorizo, peppers, or spinach for a heartier bite. Others swap onions for zucchini or mushrooms for a lighter version. In Spain, the debate continues: onion or no onion? Each household has its own preference. Vegetarian versions are popular, and some even add cheese for extra richness. Served sliced into small wedges, these variations bring diversity to tapas tables. Whether traditional or modern, Tortilla Española always remains a versatile and delicious dish suitable for every occasion.