Heat 2 tablespoons of olive oil in your large skillet over medium-high heat. Once hot, add the bite-sized chicken pieces, seasoned lightly with salt and pepper. Sauté for about 5-7 minutes, stirring occasionally until the chicken is golden brown and cooked through. Remove the chicken from the pan and set aside.
In the same skillet, reduce the heat to medium and add the minced garlic. Stir frequently for about 1 minute until fragrant but not browned, releasing its delicious aroma.
Pour in 1 cup of chicken broth and 1 cup of heavy cream. Stir well to combine. Then add 1 teaspoon of Italian seasoning along with salt and pepper to taste. Bring the mixture to a gentle simmer.
Break the fettuccine in half and add it directly to the simmering sauce. Make sure the pasta is submerged in the liquid. Cover the skillet and let it cook for about 10-12 minutes, stirring occasionally, until the pasta is tender and has absorbed much of the sauce.
Once the pasta is cooked, reduce heat to low. Stir in 1 cup of freshly grated Parmesan cheese until melted and silky. Return the cooked chicken pieces to the skillet, mixing everything together so the chicken warms through and the sauce coats every strand of pasta.
Sprinkle 2 tablespoons of chopped fresh parsley over the top for a vibrant finish. Serve this Garlic Parmesan Chicken Pasta Skillet immediately, with extra Parmesan on the side if desired.