Start by spiralizing the zucchinis into noodle shapes using a spiralizer or a julienne peeler. Once done, set the zucchini noodles aside, ensuring they're slightly dry to avoid excess moisture.
In a large skillet, pour in the olive oil and heat over medium heat until shimmering.
Add the minced garlic and red pepper flakes to the skillet. Sauté for 1-2 minutes, stirring frequently until the garlic is fragrant and lightly golden, taking care not to let it burn.
Increase the heat to medium-high and gently introduce the spiralized zucchini noodles into the skillet. Sauté the noodles for about 3-4 minutes, tossing frequently until they are tender yet retain a slight crunch.
Remove the skillet from the burner and immediately add the lemon zest and juice, stirring gently to ensure the flavors integrate well.
Optional: Sprinkle the grated Parmesan cheese over the noodles, stirring until it melts and evenly coats the noodles. Season with salt and freshly ground black pepper to taste.
Serve the zesty zucchini noodles hot, garnished with fresh basil leaves.
Notes
Adjust the spice level by modifying the amount of red pepper flakes.