Preheat oven to 375°.
Combine first 7 ingredients in a large bowl; toss well to coat. Arrange eggplant mixture in a single layer on a baking sheet coated with cooking spray. Bake at 375° for 30 minutes.
Coat a nonstick skillet with cooking spray; place over medium-high heat until hot. Add leek and carrot; sauté 5 minutes or until lightly browned. Add tomato juice, vinegar, honey, salt, and tomatoes; bring to a boil. Stir in lentils and eggplant mixture. Reduce heat; simmer 35 minutes or until thick.
Spoon 2 cups mixture into 4 individual gratin dishes coated with cooking spray. Combine breadcrumbs and cheese; sprinkle 1/4 cup breadcrumb mixture over each serving. Bake at 375° for 10 minutes or until browned.
Note: Recipe can be prepared in a 3-quart casserole dish, if desired.