Step 1: Brown Ground Beef - In a large pot over medium heat, add the ground beef and diced onion. Using a wooden spoon, break up the beef and cook for about 5-7 minutes until browned and onion is soft and translucent. Drain any excess fat.

Step 2: Add Beef Broth - Pour in the beef broth and bring to a gentle boil for 2-3 minutes, enhancing overall flavors.

Step 3: Cook Macaroni - Stir in the elbow macaroni, reduce heat slightly, and cook uncovered for 7-8 minutes until pasta is al dente.

Step 4: Incorporate Cheese and Milk - Lower heat to medium-low, gradually mix in milk and cheese, stirring until melted and creamy.

Step 5: Season and Serve - Taste and season with salt and pepper. Serve warm and garnish with extra cheese or diced pickles.