1Cook pasta in a pot of boiling salted water until al dente. Drain.
2In large bowl, stir together oil, vinegar, garlic, basil, and salt and pepper. Toss with warm macaroni to coat well. Toss with Parmesan. Cover, and refrigerate 2 to 3 hours.
3Add broccoli, pepperoni, and tomatoes; toss well. Sprinkle with mozzarella cheese, and serve.
