In many ways, this is the national dish of Catalonia. You'll find it at the start of any good tapas meal across the region—in homes, bars and restaurants. There's something deeply satisfying about the warm bread, ripe tomato and golden oil together. And you can top it with anchovies, cheese or ham to create a true masterpiece. Here are two versions of the dish: one for smaller groups, the other for bigger parties. In the first, more traditional recipe, you rub the tomato directly on the bread and the crunchy toast acts like a grater. In the second, we use a grater for speed, mixing the tomatoes with olive oil and salt.