Nicoise Salad is a French salad that originated in Nice, France. It typically includes ingredients such as boiled potatoes, green beans, tomatoes, hard-boiled eggs, olives, and tuna, all arranged on a bed of lettuce. The dressing is usually a vinaigrette made with olive oil, Dijon mustard, and vinegar. In Madrid, you can find delicious Nicoise Salads in French restaurants or cafes that offer a taste of France. It's a hearty and satisfying salad option.