This pearl couscous salad is a delightful combination of flavors and textures. The nutty couscous is cooked to perfection and then tossed with tangy feta cheese and bitter radicchio. The dish is finished off with a drizzle of lemon vinaigrette, which adds a refreshing citrusy note. It's a versatile salad that can be served as a side dish or a light main course. The combination of ingredients creates a balanced and satisfying dish that is sure to impress.