Season the chicken: Pat the chicken tenderloins dry. Season them with paprika, Italian seasoning, salt, and black pepper.
Sear the chicken: Heat 2 tablespoons of olive oil in a large skillet over medium-high heat. Add the chicken and sear for about 3 minutes per side, or until golden on the outside. Remove the chicken and set aside.
Build the orzo base: Add 1 tablespoon of olive oil to the same skillet. Add the minced garlic, chopped sun-dried tomatoes, and uncooked orzo. Stir and toast for about 2 minutes.
Add the stock: Pour in the chicken stock and add the remaining salt. Bring the mixture to a boil.
Cook the orzo: Reduce the heat to low, cover the skillet, and cook for 5–8 minutes. Stir occasionally so the orzo doesn't stick and cooks evenly.
Add the spinach: Stir in the fresh spinach and cook for 2–3 minutes, until it wilts into the orzo.
Make it creamy: Pour in the heavy cream and add the dried basil and red pepper flakes. Stir until everything is well combined.
Finish the chicken: Return the chicken to the skillet. Cover and simmer for another 2–5 minutes, or until the chicken is fully cooked and the sauce is hot and creamy. For food safety, chicken should reach 165°F (74°C) internally.
Add Parmesan: Remove the skillet from the heat and sprinkle with grated Parmesan. Stir gently or let it melt over the top before serving.