01 - Preheat oven to 375°F.
02 - Slice tops off bell peppers, remove seeds and membranes. Stand peppers upright in a baking dish.
03 - Heat olive oil in a large skillet over medium heat. Add onion, celery, and chopped green bell pepper. Sauté 3–4 minutes until softened.
04 - Stir in garlic and cook 1 minute until fragrant.
05 - Add ground beef, breaking up with a spoon. Cook 5–7 minutes until browned and cooked through. Drain excess fat if needed.
06 - Stir in diced tomatoes, Creole seasoning, smoked paprika, thyme, oregano, cayenne if using, salt, and pepper. Simmer 5 minutes.
07 - Remove from heat. Mix in cooked rice and tomato sauce until thoroughly combined.
08 - Fill each bell pepper with beef and rice mixture, pressing gently to pack.
09 - Pour broth into bottom of baking dish around peppers.
10 - Cover dish tightly with foil and bake 35 minutes.
11 - Remove foil, sprinkle with cheddar cheese if desired, and bake uncovered 10 minutes until peppers are tender and cheese melts.
12 - Let stuffed peppers rest 5 minutes before serving.