01 - Preheat oven to 375°F (190°C) and prepare a baking dish for the peppers.
02 - Slice off the tops from bell peppers and remove seeds and membranes. Carve jack-o’-lantern faces into each pepper using a sharp knife.
03 - Brush the exterior of each pepper lightly with olive oil and set upright in the baking dish.
04 - Heat a large skillet over medium; brown ground beef or turkey for 5–6 minutes until cooked through. Drain excess fat if needed.
05 - Add chopped onion and minced garlic to the skillet; cook for 2–3 minutes until softened.
06 - Stir in cooked rice, drained diced tomatoes, smoked paprika, oregano, salt, and black pepper. Cook for 2 minutes, mixing thoroughly.
07 - Remove skillet from heat and fold in 0.75 cup of the shredded cheddar cheese.
08 - Fill each pepper with the prepared meat and rice mixture, packing gently. Top each with the remaining cheddar cheese.
09 - Replace reserved bell pepper tops. Cover baking dish loosely with foil and bake for 25 minutes.
10 - Remove foil and bake uncovered for an additional 10 minutes, until peppers are tender and cheese has melted.
11 - Allow Jack-O’-Lantern peppers to cool slightly before portioning and serving.