01 - Bring a large pot of salted water to a boil. Cook the fettuccine until al dente according to package instructions. Reserve 1/2 cup of pasta water, drain the pasta, and set aside.
02 - Season the chicken strips evenly with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken strips and sauté for 5 to 7 minutes, turning occasionally, until golden brown and cooked through. Remove chicken and set aside.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and cook for about 1 minute until fragrant, avoiding browning.
05 - Pour in heavy cream and bring to a gentle simmer. Whisk in Parmesan cheese until fully melted and the sauce is smooth. Stir in nutmeg if desired.
06 - Adjust seasoning by adding salt and black pepper to taste.
07 - Return the cooked chicken to the skillet and toss to coat thoroughly with the sauce.
08 - Add the drained fettuccine to the skillet. Toss together, adding reserved pasta water incrementally if the sauce requires thinning.
09 - Plate immediately and garnish with chopped parsley and extra grated Parmesan cheese.