01 -
In a large pot over medium heat, cook the ground beef and diced onion, stirring regularly, until the beef is thoroughly browned and the onion is softened. Drain off any excess fat.
02 -
Pour in the beef broth and increase heat to bring the mixture to a boil.
03 -
Stir in the elbow macaroni and cook uncovered for 7 to 8 minutes, or until the pasta is al dente.
04 -
Reduce heat to medium-low. Add the milk and shredded cheddar cheese, stirring continuously until the cheese is fully melted and the mixture is smooth and creamy.
05 -
Adjust seasoning with salt and black pepper to taste. Ladle into bowls and serve immediately.