01 - Pat the chicken breasts dry with paper towels. Season both sides generously with salt, black pepper, and garlic powder, ensuring even coverage.
02 - Heat olive oil and butter in a large skillet over medium-high heat until shimmering. Add chicken breasts and sear for 5-6 minutes per side until golden brown and internal temperature reaches 165°F. Transfer to a plate and tent with foil.
03 - In the same skillet, add minced garlic and sauté for 30 seconds until fragrant, being careful not to burn. Stir in chopped sun-dried tomatoes and cook for 1 minute to release their oils.
04 - Pour in chicken broth, using a wooden spoon to scrape up any browned bits from the bottom of the pan. Reduce heat to medium-low.
05 - Stir in heavy cream, Parmesan cheese, and Italian seasoning. Continue stirring until the sauce is smooth and slightly thickened, about 2-3 minutes.
06 - Add fresh spinach to the sauce, tossing gently until wilted, approximately 1 minute. The spinach should remain bright green.
07 - Return chicken breasts to the skillet, spooning sauce generously over each piece. Simmer for 3-4 minutes until chicken is heated through. Serve immediately garnished with fresh basil and additional Parmesan if desired.