Step 1

Bring a large pot of lightly salted water to a boil; cook rotini at a boil until tender yet firm to the bite, about 8 minutes. Run pasta under cold water and let cool in a large mixing bowl.

Step 2

Add shrimp, tomatoes, bell peppers, onion, broccoli, vinegar, garlic, oil, Italian seasoning, and pepper. Toss well, coating everything with the spices, oil, and vinegar. Chill for at least 1 hour.

Step 3

Serve cold; sprinkle Parmesan over individual servings.