Cook Pasta: In a large pot of boiling salted water, cook penne pasta according to package instructions until al dente. Drain and set aside.
Season Chicken: While pasta cooks, season chicken breasts with salt, pepper, and Italian seasoning.
Brown Chicken: In a large skillet, heat olive oil over medium-high heat. Add chicken and cook until golden and no longer pink in the middle, about 5-6 minutes per side. Remove chicken and set aside.
Saute Garlic: In the same skillet, add minced garlic and cook for 1 minute until fragrant.
Create Sauce: Pour in chicken broth to deglaze the pan, then stir in heavy cream, Parmesan, and sun-dried tomatoes. Bring to a simmer.
Combine: Slice chicken and return to the skillet. Let simmer until the sauce thickens slightly, about 3-4 minutes. Stir in chopped basil.
Mix with Pasta: Toss the cooked pasta into the skillet, combining it well with the creamy sauce.
Serve: Garnish with fresh parsley before serving warm.