Preheat oven to 350. Grease inside of 9x13 baking dish with stick of margarine. Cook elbow noodles til they are half cooked. Drain and rinse in cold water. Layer noodles and cheese in baking dish alternating between cheese and noodles. In mixing bowl combine evaporated milk, eggs, salt, and pepper. Mix well, pour evenly over macaroni and cheese. Use stick of margarine and put 1 TBSP at each corner and in middle of macaroni and cheese. Push down slightly. Bake at 350 for about 35 minutes or until lightly golden and bubbly on top.