1. Remove stems and cores from tomatoes. Crosswise cut tomatoes in half. Place, cut side up, in 12 x 8 x 2-inch baking dish. Sprinkle tops with basil, rosemary and pepper. Cover with foil. Bake at 350°F for 25 minutes.
2. Meanwhile, in small bowl drizzle butter over cereal. Add cheese. Toss to coat. Remove foil from tomatoes. Sprinkle cereal mixture on top. Bake, uncovered, about 5 minutes or until cereal mixture is crisp.