Creamy Hamburger Cauliflower Soup (Keto, Low-Carb)

Stews & Soups

March 29, 2026

Craving the ultimate comfort food but sticking to a low-carb lifestyle? This Instant Pot Hamburger Cauliflower Soup is your answer! It packs all the savory, cheesy goodness of a bacon cheeseburger into one soul-warming bowl. We’re swapping potatoes for tender cauliflower to keep it keto-friendly, without sacrificing an ounce of flavor. Ready in under an hour, this is the perfect hearty meal for a busy weeknight.

Ingredients

• 6 oz / 170g chopped bacon
• 1.5 lbs / 680g grass-fed ground beef
• 1 small yellow onion, chopped
• 2 medium carrots, peeled and chopped
• 2 celery stalks, chopped
• 4 cups / 400g chopped cauliflower florets
• 4 cups / 950ml beef broth
• 4 oz / 113g cream cheese, softened and cubed
• 1 cup / 113g shredded sharp cheddar cheese
• Salt and black pepper, to taste

Instructions

1. Directions
2. Set your Instant Pot to the “Sauté” function. Add the chopped bacon and cook for 8-10 minutes, or until golden and crisp. Transfer the bacon to a paper towel-lined plate, leaving the rendered fat in the pot.
3. Add the ground beef to the pot and cook for 8-10 minutes, breaking it up with a spoon, until browned. Use a slotted spoon to transfer the beef to a separate bowl.
4. Add the chopped onion, carrots, and celery to the pot. Sauté for 4-5 minutes until the vegetables begin to soften.
5. Press “Cancel.” Pour in the beef broth, scraping the bottom of the pot to deglaze any browned bits. Stir in the chopped cauliflower.
6. Secure the lid and set the pressure valve to the “Sealing” position. Select “Manual” or “Pressure Cook” and set the timer for 7 minutes on High Pressure.
7. Once the cooking cycle is complete, carefully perform a “Quick Release” to vent the steam.
8. Once the pin has dropped, remove the lid. Stir in the cooked bacon, ground beef, softened cream cheese, and shredded cheddar cheese until the cheeses are fully melted and the soup is creamy.
9. Let the soup rest with the lid on for 4-5 minutes to allow the flavors to meld and the soup to thicken slightly. Season with salt and pepper to taste before serving.

Nutritional Information

• Per Serving (approximate)
• Calories: 562
• Total Fat: 32.7g
• Net Carbs: 1.43g
• Protein: 55.9g
• Fiber: 2.5g

Pro Tips

• For a thicker, stew-like consistency, reduce the beef broth by 1 cup or stir in a slurry of 1 tsp xanthan gum at the end.
• Add a pinch of red pepper flakes or a teaspoon of smoked paprika along with the vegetables for a smoky, spicy kick.
• Don’t have an Instant Pot? This recipe can easily be adapted for the stovetop. Simply follow the same steps in a large Dutch oven, simmering for 20-25 minutes in step 4 until the cauliflower is tender.
• Garnish your finished soup with fresh chives, a dollop of sour cream, or extra crispy bacon bits for added texture and flavor.

FAQ

Q: Is this hamburger cauliflower soup keto-friendly
A: Yes, this soup is specifically designed for a keto and low-carb lifestyle. It uses cauliflower instead of high-carb potatoes and contains approximately 1.43g of net carbs per serving.

Q: Can I make this soup without an Instant Pot
A: Absolutely. To make this on the stovetop, use a large Dutch oven. Follow the same instructions, but instead of pressure cooking, simmer the soup for 20-25 minutes, or until the cauliflower is tender.

Q: How do I make this soup thicker
A: For a thicker, more stew-like consistency, you can reduce the beef broth by 1 cup. Alternatively, after cooking, stir in a slurry made with 1 teaspoon of xanthan gum until it reaches your desired thickness.

Q: What are some good toppings for this soup
A: You can enhance this soup with garnishes like fresh chives, a dollop of sour cream, or extra crispy bacon bits for added flavor and texture.

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