In a large skillet over medium heat, brown the ground beef until fully cooked. Drain excess grease.
Add the diced onion and cook until softened.
Stir in the cream cheese, mustard, garlic powder, paprika, salt, and pepper.
Pour in the beef broth and heavy cream, stirring until well combined.
Simmer for 5-7 minutes until the soup thickens slightly.
Add shredded cheddar cheese and stir until melted.
Serve hot, topped with chopped pickles if desired.