For a refreshing and light option, turn ratatouille into a salad. Chop the cooked vegetables into bite-sized pieces and toss them with some mixed greens. Drizzle with a simple vinaigrette dressing and sprinkle with some crumbled feta cheese or toasted nuts for added texture. This ratatouille salad is a perfect choice for a summer lunch or as a side dish for grilled meats.