Start by preheating your oven to 375°F (190°C). While the oven is heating, line a baking sheet with parchment paper to prevent sticking.
In a medium mixing bowl, combine the crumbled cooked sausage, shredded sharp cheddar cheese, softened cream cheese, garlic powder, and onion powder. Using a fork or spatula, mix the ingredients together until they are evenly combined and creamy.
Open the package of biscuit dough and carefully separate each biscuit. Place them on a clean surface and, using your hands or a rolling pin, gently flatten each biscuit into a circle about 4 inches in diameter.
Spoon a heaping tablespoon of the sausage and cheese mixture into the center of each flattened biscuit, ensuring not to overfill.
Bring the edges of the biscuit dough up over the filling to form a ball. Pinch the seams tightly to seal them and ensure the filling stays inside during baking.
Arrange the breakfast bombs seam-side down on the prepared baking sheet, spacing them apart to allow for expansion as they bake.
With a pastry brush, lightly coat the tops of each breakfast bomb with the beaten egg. This will create a beautiful golden color and shiny finish once baked.
Place the baking sheet in the preheated oven and bake for 12-15 minutes, or until the bombs are puffed up and golden brown. Keep an eye on them as baking times can vary slightly.
Once baked, carefully remove the baking sheet from the oven and allow the breakfast bombs to cool for a few minutes before serving. For an added touch, sprinkle with freshly chopped parsley if desired for color and flavor.