Season chicken breasts with salt and black pepper.
Heat olive oil in a skillet and cook chicken until golden and cooked through, then set aside.
Sauté garlic in the same skillet, then add sun-dried tomatoes, chicken broth, heavy cream, parmesan, oregano, and red pepper flakes. Simmer until sauce thickens.
Return chicken to the skillet, coat with sauce, and cook for a few more minutes. Garnish with fresh basil and additional parmesan before serving.
Notes
Use high-quality sun-dried tomatoes packed in oil for best flavor.