Harissa-Marinated Mixed Olives is a flavorful and spicy appetizer made with a combination of different types of olives marinated in a zesty harissa sauce. The harissa sauce adds a kick of heat and a depth of flavor to the olives, making them a perfect accompaniment to cocktails or as part of a mezze platter. The olives are marinated for a few hours to allow the flavors to meld together, resulting in a delicious and addictive snack.