Prepare the Chicken: Season chicken breasts with garlic powder, onion powder, smoked paprika, salt, and black pepper.
Heat olive oil in a large skillet over medium-high heat. Sear the chicken for 4–5 minutes per side, until golden brown. Remove and set aside.
Cook the Rice: In a medium saucepan, bring the chicken broth and salt to a boil. Add rice, reduce heat to low, cover, and simmer for 15–18 minutes until the liquid is absorbed. Fluff with a fork and set aside.
Make the Sauce: In the same skillet used for the chicken, melt the butter over medium heat. Whisk in flour and cook for 1–2 minutes until lightly golden.
Gradually whisk in the milk and chicken broth, stirring until smooth. Add garlic powder, thyme, cheddar cheese, and Parmesan cheese. Stir and cook for 3–4 minutes until the sauce thickens and the cheese is melted.
Combine Everything: Return the chicken to the skillet, spoon the sauce over the top, cover, and simmer on low heat for 10 minutes until the chicken is fully cooked and tender.
Serve: Spoon the rice onto plates, top with the smothered chicken and creamy sauce, and garnish with fresh parsley. Serve immediately.
Notes
Browning the chicken before simmering enhances flavor and helps seal in moisture.
Use freshly shredded cheese for a smoother, meltier sauce.