Bring a large pot of salted water to a boil and cook the pasta until al dente. Drain and set aside.
While the pasta cooks, pat your chicken dry and season both sides with salt, pepper, and Italian seasoning.
Heat olive oil in a large skillet over medium-high heat. Add the chicken and sear until golden and cooked through, about 4–5 minutes per side. Set aside and slice.
In the same skillet, add minced garlic and chopped sun-dried tomatoes. Sauté for about 1 minute, just until fragrant.
Pour in the chicken broth and stir up the brown bits from the bottom of the skillet. Let it simmer for 2–3 minutes.
Reduce heat to low and stir in heavy cream and parmesan. Add red pepper flakes if using. Let it simmer for 5 minutes until the sauce thickens slightly.
Add the cooked pasta and sliced chicken back to the skillet. Toss to coat everything in that dreamy sauce.
Garnish with chopped basil or parsley, serve warm, and prepare to wow someone.