Step 1

Place a grill pan over medium-high heat or preheat a gas or charcoal grill. Place an oven rack in the center of the oven and preheat the oven to 375°F. Butter a 13 x 9-inch glass baking dish.

Step 2

Toss the eggplant, fennel, and bell peppers with the ¼ cup olive oil. Season with salt and pepper. Grill the vegetables for 3 to 4 minutes on each side, or until softened.

Step 3

Spoon ¾ cup of the marinara sauce over the bottom of the prepared baking dish. Arrange the eggplant slices on top. Sprinkle with 1 cup of the mozzarella cheese and ⅓ cup of the Parmesan cheese. Arrange the peppers in a single layer on top. Spoon ¾ cup of the marinara sauce over the peppers. Sprinkle with 1 cup of the mozzarella cheese and ⅓ cup of the Parmesan cheese. Layer the fennel on top and cover with the remaining sauce. Sprinkle the remaining mozzarella and Parmesan cheeses on top. Sprinkle the bread crumbs over the cheese and drizzle with olive oil.

Step 4

Bake for 30 to 35 minutes, until the top is golden and forms a crust. Let cool for 10 minutes before serving.

Step 5

Cook's Note: The vegetables can also be baked in a 375°F oven for 15 to 20 minutes, or until softened.