Preheat your oven to 400°F.

Prick the sweet potatoes with a fork and roast them on a baking sheet for 45–60 minutes until tender.

Heat the olive oil in a large skillet over medium heat. Add the bell pepper and onion, cooking until softened (about 5 minutes). Stir in the garlic for the last 60 seconds.

Add the ground beef to the pan. Cook until browned, breaking it up with a spatula. Drain any excess grease if necessary.

Stir in the tomato paste first to let it "toast" for a minute. Then, add the ketchup, water, maple syrup, mustard, chili powder, worcestershire sauce, and salt.

Reduce the heat to low and let the mixture simmer for 10–15 minutes until the sauce has thickened and coated the beef beautifully.

Slice the roasted sweet potatoes down the center and fluff the insides slightly with a fork.

Generously ladle the Sloppy Joe mixture into the center of each potato.