01 -
Preheat the oven to 180°C. Pat chicken breasts dry and season evenly with salt, pepper, garlic powder, onion powder, and paprika.
02 -
Heat olive oil in a large oven-safe skillet over medium-high heat. Sear chicken breasts for 3–4 minutes per side until golden, then remove and set aside. Chicken will finish cooking in the oven.
03 -
In the same skillet, melt butter over medium heat. Add chopped onion and minced garlic, sautéing for 2–3 minutes until softened and aromatic.
04 -
Stir in chicken broth, heavy cream, sour cream, dried thyme, rosemary, and crushed red pepper flakes if desired. Bring to a gentle simmer. Add rice and stir until evenly distributed.
05 -
Allow the sauce to thicken for 3–5 minutes, then add cheddar and Parmesan cheeses. Stir until cheeses are fully melted and the mixture is creamy.
06 -
Return seared chicken breasts to the skillet, submerging slightly in the rice and sauce. Spoon sauce over chicken, cover with a lid or foil, and bake in the oven for 25–30 minutes, until chicken is cooked through and rice is tender.
07 -
Remove from oven and let rest for several minutes to allow sauce to thicken. Serve on plates, garnished with chopped parsley or chives and, if desired, an extra sprinkle of Parmesan.