This low carb hamburger soup combines browned beef, tender cauliflower, tomatoes, green beans, and a savory broth in one practical pot. It has the cozy character of a classic hamburger soup while keeping the vegetable balance focused on low carb ingredients. The soup is ready in about 35 minutes and makes an easy weeknight dinner. The beef gives the broth depth, while cauliflower and cauliflower rice make each serving satisfying without pasta or potatoes. It is especially useful when you want a warm meal that can be prepared ahead and reheated without losing its texture.
What this low carb hamburger soup is like
Each bowl has hearty ground beef, tender vegetables, and a tomato-rich broth seasoned with Italian herbs. Cauliflower florets and cauliflower rice add body without relying on pasta or potatoes, while carrots and green beans bring color and texture. The recipe is flexible enough for a family dinner and simple enough for meal prep.
Why the method works
Brown the beef with onion and garlic first so the broth starts with savory flavor. Adding the vegetables and broth together lets the cauliflower, celery, carrot, and green beans cook evenly while the tomatoes season the pot. A short simmer keeps the vegetables tender but not mushy.
How to make low carb hamburger soup
Ingredients
- 1 lb lean ground beef
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 3 cups cauliflower florets
- 1 cup cauliflower rice
- 1/2 cup sliced carrot
- 1 cup sliced celery
- 14 oz can diced tomatoes with juices
- 6 cups beef broth
- 1 cup green beans
- 1 teaspoon Italian seasoning
- Salt and black pepper to taste

Method
- Brown the ground beef, onion, and garlic in a large pot until no pink remains; drain excess fat.
- Add the cauliflower, cauliflower rice, carrot, celery, tomatoes, beef broth, green beans, and Italian seasoning.
- Bring the soup to a boil, then reduce the heat and simmer for 15 minutes, or until the vegetables are tender.
- Season with salt and black pepper, then ladle the soup into bowls and serve hot.

Serving ideas
Serve the soup with a simple green salad, grated Parmesan, or fresh parsley. For a more substantial bowl, add a spoonful of sour cream or shredded cheddar just before serving. Keep toppings separate when storing leftovers so the broth stays clean and bright. This is a practical dinner for a busy evening because the pot contains both protein and vegetables, and the broth makes the meal feel complete without a separate sauce. It also works well for lunch: portion the soup into shallow containers so it cools quickly, then add fresh toppings after reheating. If serving guests, put chopped parsley, grated cheese, and cracked pepper on the table so everyone can finish a bowl to taste.
Tips and variations
Cut the vegetables into similar-sized pieces so they finish together. If you prefer a thicker soup, simmer uncovered for a few extra minutes. Ground turkey can replace the beef, though the broth will have a lighter flavor. Use frozen cauliflower or green beans when convenient and cook until tender. Taste after simmering because broth brands vary in saltiness, and add black pepper only after the vegetables are tender.
Optional variation: For a creamy version, stir a small amount of cream cheese into individual bowls just before serving. This is an optional topping and does not change the primary recipe method.
Storage and reheating
Cool leftovers promptly and refrigerate them in a covered container for up to 3 days. Reheat gently on the stovetop or in the microwave until steaming hot. Add a splash of broth if the vegetables absorb too much liquid overnight.
Search-query answers
What vegetables go in hamburger soup?
This version uses cauliflower, cauliflower rice, carrot, celery, tomatoes, and green beans. Together they provide varied texture and flavor while keeping the soup centered on vegetables rather than pasta or potatoes.
How long does hamburger soup take to cook?
Plan on 15 minutes of preparation and 20 minutes of cooking. The simmer is complete when the cauliflower is fork-tender and the green beans are cooked through but still hold their shape.
What can I serve with hamburger soup?
A green salad, grated Parmesan, fresh parsley, or a small spoonful of sour cream makes a useful accompaniment. Keep sides simple so the beef and vegetable broth remain the focus.
FAQs
For the best texture, check the pot before the timer ends rather than relying on time alone. Cauliflower should yield easily to a fork, but it should not fall apart into the broth. The beef should be fully cooked and the soup should be steaming throughout. If the liquid tastes flat, first check the salt, then add a little more Italian seasoning or a small splash of the tomato juices already in the can. Avoid boiling the soup hard for a long period because it can make the vegetables soft and the broth cloudy. A gentle simmer is enough to finish the recipe. When planning ahead, prepare the vegetables in advance and refrigerate them separately from the browned beef, then combine everything in the pot when you are ready to cook.

With browned beef, tender vegetables, and a flavorful broth, this low carb hamburger soup is a dependable one-pot dinner for busy nights and planned leftovers.

Low Carb Hamburger Soup
Ingredients
Ingredients
- 1 lb lean ground beef
- 1 medium onion chopped
- 2 cloves garlic minced
- 3 cups cauliflower florets
- 1 cup cauliflower rice
- 1/2 cup carrot sliced
- 1 cup celery sliced
- 14 oz can diced tomatoes with juices
- 6 cups beef broth
- 1 cup green beans
- 1 teaspoon Italian seasoning
- to taste salt and black pepper
Instructions
Instructions
- Brown the ground beef, onion, and garlic in a large pot until no pink remains; drain excess fat.
- Add the cauliflower, cauliflower rice, carrot, celery, tomatoes, beef broth, green beans, and Italian seasoning.
- Bring the soup to a boil, then reduce the heat and simmer for 15 minutes, or until the vegetables are tender.






