In this spicy salad, calamari is prepared in the Basque style with plenty of tomatoes, red peppers and garlic. To ensure the best flavor, slice the onions and peppers paper-thin, using a mandoline if available, and be sure not to overcook the calamari. Depending on how hungry you are, this salad can be served either as an appetizer or a main course. A chilled dry rosé is a delicious complement.