This hearty slow cooker hamburger soup combines ground beef, vegetables, tomatoes, broth, and Parmesan in a rich, thickened soup that feeds a crowd and makes plenty of leftovers.
Course Soup
Cuisine American
Keyword hamburger soup in the slow cooker, slow cooker hamburger soup
4tablespoonsall-purpose flourfor the finishing roux
½teaspoonItalian seasoning
½cupgrated Parmesan cheesedivided
Instructions
Add the ground beef, diced onion, and garlic to a large skillet. Cook over medium-high heat until the beef is completely browned. Drain the excess grease.
Stir ½ cup flour into the cooked beef mixture until evenly combined.
Transfer the beef mixture to the slow cooker. Add the onion soup mix, ranch dressing mix, black pepper, seasoned salt, beef broth, chicken broth, water, diced tomatoes, tomato sauce, soy sauce, celery, carrots, green beans, drained corn, and Italian seasoning. Stir to combine.
Cover and cook on LOW for 8 hours.
Near the end of the cooking time, melt the butter in a small saucepan over low heat. Whisk in the remaining 4 tablespoons flour and stir until smooth.
Stir the finishing roux into the soup until completely combined.
Stir ¼ cup grated Parmesan into the soup. Reserve the remaining ¼ cup Parmesan for garnishing individual servings.