This refreshing apple walnut salad is a perfect blend of sweet and savory flavors. Crisp apple slices, crunchy walnuts, and tangy feta cheese are tossed with a bed of fresh mixed greens. The salad is then drizzled with a light and zesty lemon vinaigrette, adding a burst of citrusy goodness. It's a simple yet elegant dish that can be enjoyed as a light lunch or a side salad for dinner.