01 - Pat spiralized zucchini noodles dry with paper towels to eliminate excess moisture.
02 - Heat olive oil in a large skillet over medium heat. Add zucchini noodles and sauté for 2 to 3 minutes until just tender. Transfer noodles to a plate and set aside.
03 - Melt unsalted butter in the same skillet over medium heat. Add minced garlic and cook for 1 minute until fragrant, being careful not to let it brown.
04 - Pour in heavy cream and bring to a gentle simmer. Reduce heat to low and whisk in grated Parmesan cheese, black pepper, and ground nutmeg if using. Stir continuously until the cheese is fully melted and the sauce becomes smooth, about 2 to 3 minutes.
05 - Stir chopped parsley into the sauce. Return the reserved zucchini noodles to the skillet and toss gently to coat evenly with Alfredo sauce.
06 - Heat everything together for 1 to 2 minutes, ensuring noodles remain firm. Serve at once, garnished with additional Parmesan and parsley as desired.