Cook the pasta according to package instructions until al dente.
Drain the pasta and rinse it under cold water to halt the cooking process.
In a large bowl, combine the cooked pasta with basil pesto and mix well.
Add in the cherry tomatoes, cucumber, black olives, and Parmesan cheese, stirring gently.
Taste and season with salt and pepper as needed.
If desired, drizzle olive oil to adjust consistency and mix again.
Cover and refrigerate the salad for at least 30 minutes before serving.
Serve cold, garnished with extra Parmesan if desired.