Cheesy Eggplant Casserole

Preheat broiler to high and place a rack 7 inches from the heat. Toss eggplant, tomatoes, zucchini, onion and oil in a large bowl. Spread in a single layer on 2 large rimmed baking sheets. Broil 1 pan until the vegetables are charred and slightly tender, about 6 minutes. Repeat with the second pan. Reduce oven temperature to 375 degrees F.

Lightly coat a 3-quart baking dish with cooking spray. Add the eggplant mixture, bread cubes, parsley, basil, mint and 3/4 cup cheese; stir to combine.

Whisk eggs, milk, pepper and salt in a medium bowl. Pour over the eggplant mixture in the baking dish. Sprinkle the top with the remaining 3/4 cup cheese; cover the dish with foil. Bake until puffed and custard is mostly set, about 45 minutes.

Uncover and continue to bake until the top is golden and the custard is fully set, 15 to 20 minutes. Let stand for 10 minutes before serving.