Roasted Ratatouille = The Best Ratatouille. This recipe is incredibly forgiving. I make it every summer when I am overloaded with eggplant, tomatoes, peppers, zucchini, and onions. What I love about this roasted ratatouille's flavor is the subtle bite lent by the balsamic vinegar, which evokes eggplant caponata and imparts a mellow sweetness. Spread over toast, tossed with pasta, spooned over polenta, this roasted ratatouille is irresistible! #ratatouille #roasted #pasta #summer #eggplant #tomat