In a skillet over medium heat, brown ground beef for about 5–7 minutes until fully cooked. Add diced onion and minced garlic, cooking for an additional 2–3 minutes. Stir in Worcestershire sauce and let mixture cool.

Preheat oven to 375°F (190°C) and line a baking tray with parchment paper. Flatten each biscuit into a circle, place a tablespoon of beef mixture and a cube of cheddar cheese in center, fold dough over filling, pinching edges to seal.

Arrange bombs on the baking tray. Melt butter and mix in garlic powder; brush over tops and sprinkle with sesame seeds if desired. Bake for 15–18 minutes until golden brown.

Let cheeseburger bombs cool for about 5 minutes before serving garnished with fresh parsley if desired.