1. Preheat the oven to 400 degrees. Grease 12 muffin tins.
2. In a small bowl, combine the ketchup, brown sugar, and 1 tsp of the Worcestershire sauce. Set aside.
3. Pour the breadcrumbs, milk, dried parsley, and onion powder into the bowl.
4. Add the eggs, beef, and 2 Tbsp of the ketchup mixture. Use your hands to combine everything together well.
5. Divide the mixture into the 12 muffin tins. Form each portion into a ball and pat down into muffin tin, leaving the top domed.
6. Spoon a bit of the remaining ketchup mixture over the top of each cup and spread evenly. Reserve the remaining sauce to serve on the side.
7. Bake for 30-35 minutes, or until the beef is fully cooked.

To make mashed potatoes

1. Boil the potatoes until soft. Add to a large bowl or mixer and beat with the milk, butter, and sour cream until the texture you like is achieved.