Start by spiralizing the zucchini using a spiralizer or a julienne peeler. Set the zoodles aside on a clean kitchen towel to absorb any excess moisture.
In a large skillet, heat the olive oil over medium heat.
Add the minced garlic to the skillet and sauté for about 1-2 minutes, until fragrant but not browned.
Stir in the zoodles and cook for approximately 3-4 minutes, tossing gently to combine with the garlic and olive oil.
Add the lemon zest, lemon juice, and red pepper flakes to the skillet. Season with salt and pepper to taste, then stir well to coat the zoodles evenly.
Continue cooking for an additional 2-3 minutes until the zoodles are tender but still al dente.
Remove from heat and, if desired, sprinkle with freshly grated Parmesan cheese. Toss gently to combine.
Serve immediately, garnished with fresh basil leaves.