Preheat your oven to 350°F (175°C). This ensures everything cooks evenly.
In a large skillet, brown your lean ground beef. Once it's fully cooked, carefully drain any excess grease to keep it light.
Stir in the entire can of Manwich Sloppy Joe sauce with the cooked beef. Give it a good mix and then set this delicious filling aside.
Follow the package directions for your corn muffin mix. This usually involves combining the mix with the egg and milk.
Spoon about 2 heaping tablespoons of the prepared corn muffin batter into each well of a standard muffin pan. This forms the base of your cups.
Now, take your sloppy joe mixture and evenly divide it among the muffin wells, placing it right on top of the cornbread batter.
Pop the muffin pan into your preheated oven and bake for about 20 minutes, or until the cornbread edges turn a lovely golden brown.
Once baked, remove the cups from the oven and immediately top each one with a sprinkle of shredded cheddar cheese, a dollop of light sour cream, and some fresh green onions.
These easy and healthy cups are best served warm!