Chop the Onion: Start by finely chopping your medium yellow onion.

Cook the Beef: In a skillet over medium heat, add the lean ground beef and chopped onions. Cook for about 7-10 minutes, stirring occasionally, until the beef is browned and the onions are translucent.

Mix the Flavors: Stir in the ketchup, Worcestershire sauce, garlic powder, salt, and pepper. Heat the mixture through until everything is warm, about 2-3 minutes.

Toast the Buns: Lightly toast your soft burger buns until they are golden brown.

Assemble and Serve: Spoon generous portions of the beef mixture onto each bun. Serve immediately, with extra ketchup on the side for dipping!