Preparation

• Heat the oven to 425°F. Fold together the ratatouille, beans, parsely, and basil. Season with salt and pepper to taste. Put the mixture into a small (1-1/2-qt.) gratin pan or baking dish.
• In a small bowl, toss the breadcrumbs, Parmigiano, and olive oil until well blended. Sprinkle the crumb mixture over the gratin. Bake until the ingredients are heated through, the topping is lightly browned, and the juices are bubbling around the edges, 20 to 30 min. Let cool for about 10 min. before serving.

Make Ahead Tips

You can mix the vegetables, beans, and herbs ahead of time, but don’t top with the crumbs until you’re ready to bake, or they’ll get too soaked with oil.