1In 4- to 5-quart Dutch oven, heat broth to boiling. Stir in pasta. Cook uncovered 9 to 11 minutes, stirring occasionally, until tender. Drain; set aside
2In same pan, melt butter over medium heat. Add pasta, lemon peel, lemon juice, grated cheese and pepper. Stir gently just until cheese is melted. Sprinkle individual servings with shredded cheese.