Slice the chicken breast horizontally into two thinner pieces. Season both sides with your preferred chicken seasoning.
Heat the olive oil and sun-dried tomato oil in a large pot over medium heat. Add the chicken and cook for approximately 5–6 minutes per side, or until it reaches an internal temperature of 165°F (74°C).
Remove the chicken from the pot and set it aside. After it has rested for a few minutes, chop it into small, bite-sized pieces.
Add the butter to the same pot. Stir in the onion, carrots, and celery. Cook for approximately 5 minutes, stirring occasionally.
Add the minced garlic and cook for 1 minute.
Stir in the chopped sun-dried tomatoes and tomato paste. Season with the herbs de Provence and mix well.
Sprinkle the flour over the vegetables. Stir until evenly combined and cook for 2–3 minutes.
Add the rice and both seasoning packets. Pour in the water and stir thoroughly.
Bring the soup to a boil. Reduce the heat to a gentle simmer, cover, and cook for approximately 22 minutes, stirring occasionally. Cook until the rice is tender.
Stir in the heavy cream and reduce the heat to low. Add the Parmesan and stir until completely melted.
Return the chopped chicken to the pot and stir in the spinach. Taste and add salt and black pepper as needed.
Simmer over low heat for another 2–3 minutes, or until the spinach is wilted and the soup has thickened slightly.
Serve topped with red pepper flakes, additional Parmesan, and fresh basil ribbons.