Season the chicken: Pat the cutlets dry. Sprinkle both sides with salt, pepper, and Italian seasoning.
Brown the chicken: Heat the olive oil in a large skillet over medium-high.
Sear chicken 3–4 minutes per side until golden and cooked through. Transfer to a plate and tent loosely with foil.
Sauté aromatics: Reduce heat to medium. Add garlic and red pepper flakes.
Cook 30–45 seconds until fragrant, stirring so it doesn’t burn.
Build the sauce: Stir in chicken broth, scraping up browned bits. Reduce by about a third, 2–3 minutes.
Make it creamy: Lower heat to medium-low. Add light cream and parmesan, stirring until smooth.
Add veggies: Stir in sun-dried tomatoes and spinach.
Cook until spinach wilts, 1–2 minutes. Add lemon juice if using. Taste and season with a pinch more salt if needed.
Finish the dish: Return chicken and any juices to the skillet.
Spoon sauce over the cutlets and warm for 1–2 minutes. Garnish with basil.
Serve: Plate with your favorite side and a squeeze of fresh lemon if you like.