Turn on the slow cooker and add the beef broth, milk, celery, basil, cauliflower, pickles, salt, and pepper.
Meanwhile, heat a large nonstick pan over medium-high heat. Cook the ground beef for 5-8 minutes, breaking it up as it cooks. Drain extra fat if needed. Add the ground beef to the slow cooker and cook on low for 6-8 hours.
Divide the soup into bowls and top with cheddar cheese. Enjoy!
Notes
Storage: Store in the fridge for up to 5 days or freeze for up to 3 months
Dairy-Free: Omit cheese or use vegan cheese
More Flavor & Toppings: Add sautéed garlic and onions. Add greek yogurt and sliced green onions