In a medium bowl, combine the ground beef, onion, bread crumbs, garlic powder, pepper, salt, ketchup, Worcestershire sauce, and egg. Mix together until all ingredients are combined.
Form the mixture into a loaf shape on a microwave-safe dish.
Microwave the meatloaf on high for 8 minutes.
Reduce heat to 50% and microwave for an additional 8 minutes.
Let the meatloaf stand for 5 minutes before slicing and serving.
Interesting Facts
Meatloaf is a popular dish in many countries.
Ground beef is a popular choice for meatloaf, but you can substitute ground turkey or pork.
Adding vegetables such as carrots, celery, or bell peppers to the mixture will add flavor and nutrition.
For a crispy top, brush the meatloaf with ketchup before microwaving.