Layer potatoes across the bottom of a 12 x 7 1/2 x 2-inch baking dish. Season with salt and pepper. Arrange corn and green peppers over the potatoes. Layer the onion, then the carrots. Crumble beef evenly over the vegetables. Sprinkle with more salt and pepper; pat gently to smooth. Top casserole with tomato sauce. Bake, covered, at 350° for 2 hours. Uncover; sprinkle with cheese. Let stand for 10 to 15 minutes before serving. Makes 8 to 9 servings.