Bring a large pot of salted water to a rolling boil. Add the pasta and cook according to package instructions, usually around 8-12 minutes for al dente. Stir occasionally.

In a food processor, combine fresh basil, garlic, pine nuts, and Parmesan cheese. Drizzle in olive oil while pulsing until smooth. Adjust texture and flavor to your preference.

Reserve a cup of pasta cooking water before draining. Return pasta to the pot, add pesto, and stir to coat. Use reserved water to adjust consistency if needed.

Toss in cherry tomatoes or sautéed vegetables for added color and nutrition.