Cut the bell peppers in half from top to bottom, and remove the stem, seeds, and any inside bits. Set aside.
2 large bell peppers
In a large skillet, add the ground beef and cook on medium to high heat until everything is cooked and browned. Add the onions and garlic and cook for 3-4 minutes on medium to low heat.
1 pound ground beef, 1 onion, 2 cloves garlic
Add the ketchup, Dijon mustard, chili powder, paprika, brown sugar, and Worcestershire sauce and stir until everything is combined. Add ½ cup of water and stir once again. Bring to a simmer and cook for 10 minutes or until everything has thickened up.
2 teaspoons chili powder, 2 teaspoons smoked paprika, ¾ cup ketchup, 1 tablespoon Dijon mustard, 1 tablespoon brown sugar, 3 teaspoons Worcestershire sauce
Evenly add the sloppy Joe mixture into the peppers using a spoon. Add to the air fryer basket and cook for 8-10 minutes at 350°F (180C). Check on it halfway through to make sure the meat isn’t burning.
Once done add sprinkles of the cheese on top of the meat and cook again just until the cheese is melted.
1 cup cheddar cheese
Garnish with chopped parsley and serve.
Chopped parsley for topping is optional