Preheat the oven to 350°F.
Season the chicken thighs with paprika, thyme, garlic powder, salt, and black pepper. Set aside.
Melt butter in a large oven-safe skillet over medium heat.
Add diced onion and minced garlic. Cook for 3–4 minutes, stirring frequently, until softened and fragrant.
Stir in the rice and cook for 30 seconds while stirring continuously.
Place the seasoned chicken thighs over the rice mixture.
Pour in the chicken broth and hot water.
Sprinkle Italian seasoning and oregano over the top. Add extra salt and pepper if desired.
Bring everything to a gentle boil.
Cover the skillet tightly with a lid or foil and bake for 30 minutes.
Remove the cover and continue baking for 15–20 minutes, or until the liquid is fully absorbed and the chicken is cooked through.
Let the Garlic Butter Chicken and Rice rest for 5–8 minutes before serving.
Fluff the rice with a fork, garnish with parsley, and serve warm.