01 -
Brown the lean ground beef in a large pan over medium heat, breaking it apart with a wooden spoon. Drain the rendered fat.
02 -
Add beef broth and uncooked macaroni to the pan. Raise heat to bring the mixture to a boil, then reduce to a simmer. Cook until the macaroni is tender, about 8–10 minutes.
03 -
Stir in the skim milk, light cream cheese, and shredded cheddar. Continue cooking and stirring until the cheeses melt fully and the sauce thickens, about 3–5 minutes.