Season and Sear the Chicken:
Sprinkle both sides of the chicken with Italian seasoning, paprika, salt, and pepper.
Heat a large pan over medium heat, add a drizzle of avocado oil, and sear the chicken for 4-5 minutes on each side until cooked through. Remove and set aside.
Sauté the Aromatics:
In the same pan, melt a pat of butter and add the diced onion. Cook until translucent.
Stir in the minced garlic and sauté for an additional minute.
Cook the Pasta:
Pour in the chicken broth and bring to a light boil.
Add the dry penne pasta, ensuring it's submerged. Cover and cook for about 10 minutes, stirring occasionally, until the pasta is al dente.
Prepare the Creamy Sauce:
Reduce the heat and stir in the heavy cream and freshly grated Parmesan cheese until the sauce is smooth and creamy.
Season with additional salt and pepper to taste.
Combine and Serve:
Slice the cooked chicken and return it to the pan, mixing it with the pasta and sauce.
Garnish with a handful of chopped fresh parsley.