Preheat and prep: Heat the oven to 400°F (200°C). Line a baking sheet with parchment and lightly oil it.
If using an air fryer, preheat to 370°F (188°C).
Cook the filling: In a skillet over medium heat, cook the ground beef and onion until browned, 6–8 minutes. Drain excess fat.
Season it right: Stir in minced garlic, salt, pepper, Worcestershire, and ketchup. Cook 1–2 minutes until fragrant.
Remove from heat and let cool slightly.
Portion the dough: Separate biscuits or divide pizza dough into 12 pieces. Gently flatten each piece into a 3–4 inch round.
Assemble the bombs: Place about 1 tablespoon of beef in the center of each dough round. Top with a cheese cube.
Pull the dough up and around the filling, pinching to seal. Keep the seams tight to prevent leaks.
Arrange for baking: Place seam-side down on the prepared baking sheet. Leave space between each.
Make the garlic butter: Mix melted butter, Parmesan, garlic powder, and parsley. Brush half over the tops.
Sprinkle sesame seeds if using.
Bake or air-fry: Oven: Bake 13–16 minutes, until deeply golden.
Air fryer: Cook in batches 8–10 minutes, shaking or rotating once.
Finish and serve: Brush with the remaining garlic butter while hot. Let rest 3 minutes, then serve with ketchup, burger sauce, ranch, or garlic mayo.