Cook the Beef: Heat olive oil in a large pot over medium heat. Add ground beef, onion, and bell pepper. Cook until beef is browned and vegetables are softened.
Add Liquids: Stir in cream of mushroom soup, beef broth, and milk. Bring to a boil, then reduce heat and simmer for 10 minutes.
Add Cheese: Stir in shredded cheddar cheese until melted and smooth.
Serve: Ladle soup into bowls and top with crumbled bacon, toasted bread, and fresh parsley.
