01 - Preheat oven to 375°F (190°C).
02 - Pat chicken breasts dry and season both sides with salt, black pepper, and smoked paprika.
03 - In a large ovenproof skillet over medium-high heat, melt 2 tablespoons of butter. Add chicken breasts and sear for 3–4 minutes per side until golden brown. Remove and set aside.
04 - Reduce heat to medium. Add remaining 2 tablespoons of butter to the skillet. Sauté onion, red bell pepper, and garlic for 3–4 minutes until softened.
05 - Deglaze the skillet with chicken broth, scraping up browned bits. Stir in heavy cream, cheddar cheese, Worcestershire sauce, cayenne pepper, and additional smoked paprika if desired. Simmer for 2–3 minutes until slightly thickened.
06 - Return chicken breasts to the skillet, spooning sauce over the top. Transfer to the oven and bake for 20 minutes, or until chicken reaches an internal temperature of 165°F (74°C).
07 - Remove from oven and let rest for 5 minutes. Garnish with green onions and fresh parsley. Serve with rice, mashed potatoes, or cornbread.