Season both sides of the chicken breasts with salt and pepper.
In a large skillet, heat the olive oil over medium-high heat. Once hot, add the chicken breasts and cook for about 5-7 minutes on each side until they are golden brown and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, add the minced garlic and sauté for about 1 minute until fragrant.
Add the chopped sun-dried tomatoes and cook for another 2 minutes, stirring constantly.
Pour in the heavy cream, and add the Italian seasoning. Stir to combine and bring the mixture to a gentle simmer.
Return the chicken to the skillet, allowing it to simmer in the sauce for 5 minutes.
Add the fresh spinach and grated Parmesan cheese, stirring until the spinach wilts and the cheese melts, creating a rich and creamy sauce.
Taste and adjust seasoning with salt and pepper as needed.
Serve the Tuscan Chicken hot, garnished with fresh basil leaves.