Cook pasta by bringing salted water to a boil, adding pasta, and cooking until al dente, about 8-10 minutes. Drain and rinse under cold water.

In a bowl, whisk together olive oil, lemon juice and zest, minced garlic, salt, and pepper.

In a mixing bowl, combine cooled pasta with cherry tomatoes, red onion, and fresh basil; mix gently.

Drizzle dressing over the pasta mixture and toss to coat all ingredients evenly.

Fold in crumbled cheese and toasted nuts if using, then chill in the refrigerator for 30 minutes before serving.