Ingredients
Method
- Heat 2 tbsp water or broth in a large pot over medium heat. Add onion, celery, and garlic. Cook 5 minutes, stirring often, until softened. Add carrots and cook 2 minutes.
- Stir in cabbage, bell peppers, diced tomatoes with juice, thyme, bay leaf, salt, and pepper. Pour in vegetable broth. Bring to a boil, then reduce heat to a low simmer.
- Cover with lid slightly ajar and simmer 25–30 minutes, until carrots are fork-tender. Stir occasionally and add more salt to taste.
- Remove bay leaf. Stir in lemon juice, if using. Ladle into bowls and serve hot.
Notes
This soup is the foundation of the 7-day cabbage soup diet, but it also works as a simple, low-calorie vegetable soup any day of the week. If you want a little texture, mash a few carrot slices against the pot before serving.
