Boil the Pasta: Bring a large pot of salted water to a boil. Add fettuccine noodles and cook for 8-10 minutes until al dente. Reserve 1 cup pasta water, drain, and set aside.

Cook the Chicken: In a large skillet, heat olive oil over medium heat. Season chicken with salt and pepper, cook for 6-7 minutes per side until golden and cooked to 165°F. Let rest, then slice.

Make the Alfredo Sauce: In the same skillet, reduce heat, add butter and cream, stirring until melted. Add minced garlic, cooking for 1 more minute.

Add Cheese and Seasonings: Stir in Parmesan cheese until melted. Season with black pepper. Use reserved pasta water to adjust consistency if too thick.

Combine Everything: Add cooked noodles to the sauce, then mix in the sliced chicken. Heat everything through.

Garnish and Serve: Transfer to plates, sprinkle with parsley and optional vegetables, serve hot.