Prep the zucchini: Spiralize zucchini into noodles (zoodles). Lay them on a paper towel, sprinkle lightly with salt, and let sit 10 minutes. Pat dry to remove excess moisture.
Season the chicken: Toss chicken with a pinch of salt and pepper.
You can also add a little garlic powder if you like.
Sear the chicken: Heat 1 tbsp oil in a large skillet over medium-high. Add half the chicken in a single layer. Cook 3–4 minutes per side until golden and cooked through.
Remove to a plate. Repeat with remaining oil and chicken.
Build the sauce base: Reduce heat to medium. Add butter to the same skillet.
Stir in minced garlic and cook 30–45 seconds until fragrant, not browned.
Add cream and simmer: Pour in heavy cream. Stir and bring to a gentle simmer for 2–3 minutes to thicken slightly.
Melt in Parmesan: Lower heat and whisk in Parmesan gradually until smooth. Season with pepper, a pinch of salt, and nutmeg if using.
If it gets too thick, splash in a little more cream or water.
Return the chicken: Add cooked chicken and any juices back to the skillet. Toss to coat and warm through for 1–2 minutes.
Cook the zoodles lightly: Add zucchini noodles to the skillet. Toss gently for 1–2 minutes until just tender but still with a bite.
Do not overcook, or they’ll get watery.
Finish and serve: Taste and adjust salt and pepper. Add red pepper flakes if you like. A tiny squeeze of lemon brightens the sauce.
Garnish with parsley and extra Parmesan. Serve right away.