01 - Preheat oven to 400°F. Pierce each sweet potato several times with a fork. Arrange on a rimmed baking sheet and bake for 40–45 minutes until fork-tender and easily pierced with a paring knife.
02 - Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it apart with a wooden spoon, until fully browned and no pink remains. Drain and discard excess rendered fat.
03 - Add the chopped onion, bell pepper, and minced garlic to the browned beef. Sauté for 4–5 minutes, stirring occasionally, until the vegetables are softened and translucent.
04 - Stir in the tomato sauce, tomato paste, Worcestershire sauce, ketchup, and brown sugar. Season with smoked paprika, chili powder, cumin, salt, and black pepper. Pour in the beef broth, stir thoroughly to combine, and bring to a simmer.
05 - Reduce heat to medium-low and let the mixture simmer for 10 minutes, stirring occasionally, until the sauce thickens and coats the meat evenly.
06 - Remove the baked sweet potatoes from the oven. Slice each one lengthwise down the center and fluff the interior flesh with a fork.
07 - Spoon the hot Sloppy Joe filling generously over each split sweet potato. Garnish with chopped fresh parsley and shredded cheddar cheese as desired. Serve immediately.