Preheat oven to 400°F (200°C).
Prepare the bell peppers: Cut the tops off the peppers and remove the seeds and membranes. Carve small jack-o’-lantern faces with a small pointed knife, saving any pepper pieces from the cutouts. You can place the tops back on the peppers (later, after filling them) or use them for something else (I didn’t use the tops).
6 orange bell peppers
Make the filling and sauce: Finely dice the onion, finely chop the garlic, and finely chop the leftover pepper pieces (from the “smiles” and “eyes”).
1 medium onion, 4 cloves garlic
Heat 1 tablespoon of oil in a large pan. Add the onion and chopped pepper scraps. Cook for about 5 minutes, until softened. Stir in the garlic, half of the spices, half of the Worcestershire sauce, sugar, and the crushed tomatoes. Simmer for 5 minutes, then season well with salt and pepper. I like to blend the sauce slightly with a hand blender (not until smooth), but this is optional (but it improves texture and flavor).
2 teaspoons chili powder, 2 teaspoons oregano, 1/2 teaspoon cumin, 1 teaspoon Worcestershire sauce, ½ teaspoon sugar, 2 cans (8oz/230g) each crushed tomatoes
Spread 1½ cups of the sauce over the bottom of a large baking dish (9x13 inches or 23x33 cm). Transfer the remaining sauce to a bowl.
In the same frying pan, heat the remaining tablespoon of oil. Add the ground beef and cook over high heat until browned (don’t stir it at first), then stir and brown on the other side. Continue cooking, stirring, until no longer pink.
1 pound (450g) ground beef
Stir in the remaining tomato sauce, the rest of the spices, the remaining Worcestershire sauce, corn, and beans. Simmer briefly, for about 2 minutes, then stir in the cooked rice. Take off the heat and season well with salt and pepper to taste.
1/2 cup canned corn, 1/2 cup black beans or kidney beans, 1 cup (160g) cooked rice
Fill the bell peppers: Fill the peppers with the beef-rice mixture and arrange them upright in the prepared baking dish.
Bake: Cover tightly with aluminium foil and bake for 30 minutes.
Remove the foil, sprinkle with grated cheese, and bake uncovered for 10 minutes more, until the cheese is melted and bubbly.
2 cups (200g) shredded cheddar cheese
Serve with the sauce from the baking dish.
Enjoy!