Preheat your oven to 375°F (190°C). Spray the muffin tin lightly with cooking spray. Separate the biscuit dough and press each one into a muffin cup, stretching the dough up the sides to form a cup.

Brown the ground beef in a skillet over medium heat, breaking it into small crumbles. Once no pink remains, drain any excess grease. Add the diced onion and bell pepper to the skillet and cook for 3–4 minutes until softened.

Stir in the ketchup, brown sugar, mustard, Worcestershire sauce, garlic powder, paprika, and a pinch of salt and pepper. Let the mixture simmer for 5 minutes to thicken slightly.

Spoon the Sloppy Joe filling into each biscuit cup, dividing it evenly. Sprinkle shredded cheese on top if using.

Bake for 12–15 minutes until the biscuit edges are golden brown and the filling is bubbly.

Let the cups cool in the tin for 5 minutes before removing them. Serve warm.