Preheat oven to 425 degrees F. Cook ravioli according to package directions. Trim and lengthwise slice zucchini. Add zucchini to ravioli during the last 3 minutes of cooking time. Drain, but do not rinse.
In 2-quart square baking dish layer half the tomato slices. Drizzle 1 tablespoon of the oil. Sprinkle half the basil. Using tongs, layer half the ravioli and sprinkle half the cheese. Layer zucchini slices; drizzle 1 tablespoon oil. Layer remaining ravioli, basil, cheese, and tomato; drizzle remaining oil. Season with salt and ground black pepper.
Bake, uncovered, 9 to 10 minutes or until cheese is melted and begins to brown. To serve, cut in squares; sprinkle with fresh basil. Makes 4 servings.