In a large pot (large enough to hold all of the peppers), heat the oil over medium-high heat. Add in the chopped pepper tops, onion and garlic, and sauté until softened, about 5 minutes. Add in the spinach, allspice, cinnamon, cayenne, salt and pepper, and continue to cook, stirring constantly, until the spinach has completely wilted. Transfer to a large bowl and let cool for at least 15 minutes. No need to clean the pot.
Reserving 1/2 cup of the tomatoes, pour the remainder into the pot. Sprinkle the brown sugar and vinegar over the tomatoes and gently stir to combine. Set aside.
Add the uncooked beef, rice, egg and 1/2 cup of the crushed tomatoes to the bowl with the vegetables and stir to combine thoroughly. Fill the cavities of the peppers with the stuffing. Stand the peppers in the pot as you fill them. Make sure you use all the filling to stuff the peppers, mounding on top if necessary.
Turn the heat on to medium-high to bring sauce to a boil. Spoon some sauce over each pepper. Cover the pot, turn the heat down to medium-low and cook until the peppers are tender and the filling is firm and cooked through, about 25 to 35 minutes. Serve hot.
Nutrition information per serving:
Calories340Fat9 gSodium1,110 mg