Cut each eggplant half lengthwise into 1/4-inch-thick slices starting 1 inch from stem end. Place eggplant halves on a baking sheet. Gently press slices open; place tomato slices between eggplant slices. Brush oil over eggplant; sprinkle with rosemary, basil, salt, pepper, and garlic. Bake at 500° for 15 minutes; sprinkle with cheese. Bake an additional 4 minutes or until cheese begins to brown. Garnish with basil sprigs, if desired.