Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
In a skillet over medium heat, cook the ground beef until browned. Add the minced garlic and sauté until fragrant, about 5-7 minutes. Drain any excess fat and remove from heat.
Stir in the diced Parmesan cheese and cubed cheddar cheese until well combined. Allow the mixture to cool slightly.
Separate the biscuit dough and flatten each piece slightly with your hands or a rolling pin.
Place a generous spoonful of the beef and cheese mixture in the center of each biscuit. Fold the dough over the filling and pinch the edges tightly to seal.
Arrange the sealed bombs on the prepared baking sheet, seam-side down. Brush the tops with melted butter for a golden finish.
Bake for 12-15 minutes, or until the dough is puffed and golden brown.
Once baked, sprinkle the bombs with chopped parsley for a fresh garnish. Serve warm and enjoy!