Preheat your oven to 375°F (190°C).

In a skillet over medium heat, cook the ground beef for about 6-8 minutes until well-browned. Drain excess grease.

Stir in garlic powder, onion powder, and black pepper, cooking for an additional 1-2 minutes, then remove from heat.

In a large bowl, combine softened cream cheese, shredded cheddar, and grated Parmesan cheese until smooth; then stir in the beef mixture.

Open the refrigerated biscuit dough and flatten each biscuit into a disc about 4 inches in diameter.

Place a generous spoonful of the beef and cheese mixture in the center of each biscuit, fold dough over and pinch edges to seal.

Arrange the bombs on a baking sheet and brush the tops with melted butter, then bake for 12-15 minutes until golden brown.

Let the bombs cool slightly before serving warm, optionally with marinara for dipping.