1. Preheat Oven and Cook Beef: Heat oven to 375°F. In a skillet over medium heat, brown the ground beef along with minced garlic until fully cooked. Drain excess fat from the pan to keep the filling from being greasy.
2. Combine Cheeses with Beef: Stir diced Parmesan cheese and cubed cheddar cheese into the hot cooked beef until the cheese melts completely and is well combined, creating a gooey, flavorful filling.
3. Prepare Dough and Fill: Flatten each biscuit dough piece into a disc. Scoop a generous amount of the beef and cheese filling into the center of each flattened biscuit. Fold up the edges to seal the filling tightly inside, reshaping into a ball to prevent leaks.
4. Arrange and Brush: Place each sealed cheeseburger bomb on a baking sheet lined with parchment paper or a silicone mat. Brush the tops with melted butter to enhance browning and add garlic-butter flavor.
5. Bake: Bake in the preheated oven for 12 to 15 minutes, or until the tops are golden brown and the dough is cooked through.
6. Cool and Garnish: Allow the bombs to cool slightly after baking to set the cheese filling. Sprinkle chopped parsley over the top for a fresh, vibrant finish, then serve warm.

Pro Tip: Chill the assembled, sealed bombs in the refrigerator for 10 minutes before baking to prevent cheese from leaking out and keep the centers gooey.