Bring a large pot of salted water to a boil. Add the penne pasta and cook according to package instructions until it is al dente, which means it's cooked but still slightly firm to the bite. Once cooked, drain the pasta in a colander and set it aside.

In a small bowl, combine the prepared basil pesto with the zest and juice of one lemon. Stir well to ensure that the flavors are evenly distributed throughout the sauce. The lemon zest will add a refreshing citrus aroma, while the lemon juice will provide a tangy flavor that complements the pesto perfectly.

In a large skillet, heat olive oil over medium heat. Add the minced garlic to the skillet and sauté it for about 1-2 minutes, or until it becomes fragrant and golden brown. Be careful not to let the garlic burn, as it can become bitter if cooked for too long.

Add the cooked penne pasta to the skillet with the sautéed garlic. Pour the lemon pesto sauce over the pasta, ensuring that it coats each strand evenly. Use tongs or a wooden spoon to gently toss the pasta and sauce together, making sure that all the pasta is coated with the delicious sauce.

Sprinkle the grated Parmesan cheese over the pasta and season with salt and black pepper to taste. The Parmesan cheese will add a rich, savory flavor to the dish, while the salt and pepper will enhance the overall taste and balance the flavors.

Divide the lemon pesto penne among serving plates. Garnish each plate with fresh basil leaves for a pop of color and a burst of fresh herbal flavor. Serve the pasta immediately while it's still hot and enjoy the delicious combination of flavors.