Pimientos de Padrón are small green peppers that are a popular tapas dish in Spain. They are typically fried in olive oil and sprinkled with sea salt. While most of the peppers are mild and sweet, there is always a chance of getting a spicy one, which adds an element of surprise to the dish. Pimientos de Padrón are a simple yet addictive snack that you can enjoy while strolling through Gran Vía.