1. Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
2. In a skillet, cook the ground beef with salt, pepper, and Worcestershire sauce over medium heat until browned. Drain any excess fat.
3. Flatten each biscuit into a round circle using a rolling pin. Spoon a portion of the cooked beef, a sprinkle of bacon, a bit of onion (if using), and a generous amount of cheddar cheese into the center of each biscuit.
4. Gather the edges of the biscuit together and pinch to seal, enclosing the filling inside. Place seam-side down on the prepared baking sheet.
5. Brush each bomb with beaten egg and sprinkle with sesame seeds if desired.
6. Bake in the preheated oven for about 15-20 minutes or until golden brown and cooked through.