In a large pot of salted boiling water, cook the fettuccine pasta according to package instructions until al dente. Drain and set aside, reserving 1 cup of pasta water.
While the pasta cooks, season the chicken breasts with salt, pepper, and Italian seasoning. In a large skillet, heat the olive oil over medium heat. Add the chicken and cook for about 6-7 minutes on each side until golden brown and cooked through. Remove from the skillet and let it rest before slicing into strips.
In the same skillet, add the minced garlic and sauté for about 30 seconds until fragrant. Pour in the heavy cream, stirring to combine. Let it simmer for 2-3 minutes until it slightly thickens.
Gradually whisk in the grated Parmesan cheese until melted and smooth. If the sauce is too thick, add a splash of the reserved pasta water until you reach the desired consistency.
Add the cooked pasta to the skillet with the Alfredo sauce, tossing to coat the noodles evenly. Add the sliced chicken on top and mix gently. Adjust seasoning with more salt and pepper if needed.
Plate the creamy Chicken Alfredo Pasta and sprinkle with chopped parsley and freshly cracked black pepper for added flavor.
Notes
For a lighter version, use half-and-half instead of heavy cream.