Step 1

Heat the oven to 425°F. While the oven is heating, line 8 (3 1/2-inch) muffin-pan cups with the baking cups.

Step 2

Season the beef as desired. Cook the beef and onion in a 12-inch skillet over medium-high heat until the beef is well browned, stirring often to separate meat.

Step 3

Stir the ketchup, Worcestershire, soup, 1 cup cheese, and 1 cup potato nuggets in the skillet. Spoon about 1/2 cup beef mixture into each muffin-pan cup. Top with the remaining potato nuggets, pressing them into the top of the beef mixture.

Step 4

Bake for 20 minutes or until the potato nuggets are golden brown. Let the mini casseroles cool in the pan on a wire rack for 5 minutes. Sprinkle with the remaining cheese.