Instant Pot Ground Beef Soup with Cauliflower is a tasty easy soup that starts with a pound of ground beef and other common ingredients! And if you’re someone who grew up on hamburger soup, I bet you’ll love this tasty hamburger soup with cauliflower!

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Instant Pot Low-Carb Ground Beef Cauliflower Soup shown in two soup bowls with Parmesan cheese on the side

Way back in the archives of this blog there’s a recipe called Ground Beef and Barley Soup that used to be one of my favorites when I wasn’t thinking so much about carbs, and that’s the recipe that inspired this Instant Pot Ground Beef Soup with Cauliflower.

Both recipes are the kind of simple soup you might make when you have ground beef thawed out in the fridge and just want some soup that’s warm and comforting, and this soup was so quick and easy to make in the Instant Pot. The ground beef and cauliflower get added flavor from celery, garlic, parsley, thyme, onion powder, Worcestershire sauce, and a splash of balsamic vinegar added at the end, and we used frozen cauliflower rice to make it easy.

We enjoyed this Ground Beef Soup with a generous sprinkle of freshly-grated Parmesan cheese to add at the table, but you can certainly omit that if you want a dairy-free soup. However you adapt it to suit your tastebuds, I hope you try this easy soup to welcome the new year!

What ingredients do you need for this recipe?

(This is only a list of ingredients; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

Is this Ground Beef Soup low in carbs?

This tasty hamburger soup with cauliflower rice only has about 5 net carbs per serving!

Can you make the Ground Beef Soup without Worcestershire Sauce?

I’m guessing Worcestershire Sauce might be an ingredient some people don’t keep on hand. If you’d like to make this tasty soup without having to buy that, I’d replace it with soy sauce for this recipe.

Love your Instant Pot?

I use a 6 Quart Instant Pot (affiliate link) for all my Instant Pot Recipes. Check out my index page for Instant Pot Recipes! Or you can find more Pressure Cooker/Slow Cooker Recipes on my other site!

Want more low-carb Instant Pot Soup Recipes?

Check out Low-Carb and Keto Instant Pot Soups or 50 Low-Carb Instant Pot Soup Recipes if you want more ideas for low-carb soups in the Instant Pot!

Want More Soups with Cauliflower Rice?

If you like the idea of cauliflower rice instead of rice in low-carb soups, check out Low-Carb and Keto Soups with Cauliflower Rice to find more tasty soup recipes with that ingredient.

Instant Pot Low-Carb Ground Beef Cauliflower Soup found on KalynsKitchen.com

How to Make Instant Pot Ground Beef Soup with Cauliflower:

(This is only a summary of the steps for the recipe; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.)

  1. Chop onion and celery and measure out 2 T minced garlic.
  2. Heat olive oil in the Instant Pot on SAUTE, HIGH HEAT, add ground beef and cook until it’s nicely browned, breaking apart with a plastic or wooden turner as it cooks.
  3. When the meat is browned, drain excess fat if needed and season with salt and fresh ground black pepper.
  4. Then push browned meat over to the side, add another teaspoon of olive oil if needed, and add the chopped onion and celery.
  5. Cook 3-4 minutes, then add the Minced Garlic and cook a minute or two more.
  6. Mix the barely-cooked onion/celery mixture into the ground beef.
  7. Add Dried Parsley, Dried Thyme, Onion Powder, Worcestershire Sauce, beef broth, vegetable broth, and 1 cup frozen cauliflower rice to the pot.
  8. Lock the lid and set the Instant Pot to MANUAL, HIGH PRESSURE, 10 minutes. Let the pot natural release (or natural release 10 minutes and then release the rest of the pressure if you prefer.
  9. Turn the IP settings back to SAUTE, MEDIUM HEAT, add two more cups cauliflower rice and let the soup simmer until the newly-added cauliflower rice is cooked, about 10-12 minutes. (By now the first cauliflower rice will be mostly dissolved, thickening the soup.)
  10. Stir in 1-2 T balsamic vinegar (or any flavorful vinegar will work) and taste to see if you want more salt and/or fresh ground black pepper.
  11. Serve hot, with plenty of freshly-grated Parmesan cheese to add at the table!

Instant Pot Low-Carb Ground Beef Cauliflower Soup cropped image with two bowls of soup

More Low-Carb Soup In the Instant Pot:

Weekend Food Prep:

This recipe for ground beef soup with cauliflower has been added to a category called Weekend Food Prep where you’ll find recipes you can prep or cook on the weekend and eat during the week!

Instant Pot Low-Carb Ground Beef Cauliflower Soup found on KalynsKitchen.com
Yield: 8 servings

Instant Pot Ground Beef Soup with Cauliflower

Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes

Instant Pot Ground Beef Soup with Cauliflower is an easy comforting soup with ground beef, and this uses ingredients you might already have on hand! And if you're someone who grew up eating Hamburger Soup, this might remind you of that!

Ingredients

  • 1 T olive oil (plus a little more if needed)
  • 1 lb. ground beef
  • 1 medium onion, chopped small
  • 1 cup chopped celery
  • 2 T minced garlic (minced garlic from a jar is fine for this)
  • 1 tsp. kosher salt
  • fresh-ground black pepper to taste
  • 2 T dried parsley
  • 2 tsp. dried thyme
  • 1 tsp. onion powder
  • 2 T Worcestershire Sauce (see notes for gluten-free)
  • 3 cans (14 oz. size) beef broth
  • 1 can (14 oz. size) vegetable broth
  • 3 cups frozen cauliflower rice (divided)
  • 2 T balsamic vinegar (or other flavorful vinegar of your choice)

Instructions

  1. Chop one cup each of onion and celery and measure out 2 tablespoons minced garlic (or chop fresh garlic if you prefer.)
  2. Heat 1 tablespoon olive oil in the Instant Pot (affiliate link) on SAUTE, HIGH HEAT, add the ground beef and cook until it's nicely browned, breaking apart with a plastic or wooden turner as it cooks. (Don't use a metal turner. which might scratch the pot.) I used lean ground beef so I didn't need to drain any fat, but drain some fat from the pot if needed when the beef is browned.
  3. Season the browned meat with salt and fresh ground black pepper, push it over to the side, add another teaspoon of olive oil if needed, and add the chopped onion and celery. Cook 3-4 minutes, then add the minced garlic and cook a minute or two more. Mix the barely-cooked onion/celery mixture into the ground beef.
  4. Add dried parsley, dried thyme, onion powder, Worcestershire Sauce (affiliate link), beef broth, vegetable broth, and 1 cup frozen cauliflower rice to the pot. Lock the lid and set the Instant Pot to MANUAL, HIGH PRESSURE, 10 minutes. After cooking time is up, let the pot natural release (or natural release 10 minutes and then release the rest of the pressure if you want it to go a bit faster.)
  5. Turn the IP settings back to SAUTE, MEDIUM HEAT, add two more cups cauliflower rice and let the soup simmer until the newly-added cauliflower rice is cooked, about 10-12 minutes. (By now the first cauliflower rice you added will be mostly dissolved, thickening the soup.)
  6. Stir in 2 T balsamic vinegar (or any flavorful vinegar will work), and taste to see if you want more salt and/or fresh ground black pepper.
  7. Serve hot, with freshly-grated Parmesan cheese to add at the table if desired.

Notes

Use gluten-free Worcestershire Sauce (affiliate link) if needed.

Recipe created by Kalyn.

Nutrition Information:

Yield:

8

Serving Size:

1

Amount Per Serving: Calories: 201Total Fat: 12gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 6.1gCholesterol: 50mgSodium: 307mgCarbohydrates: 6.9gFiber: 1.6gSugar: 2.8gProtein: 17g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

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Square image for Instant Pot Ground Beef Cauliflower Soup in two bowls with Parmesan on the side.

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions:
Instant Pot Ground Beef Soup with Cauliflower is a good soup recipe for any low-carb or Keto diet plan. This recipe will also work for any phase of the original South Beach Diet as long as you use lean ground beef.

Find More Recipes Like This One:
Use Instant Pot Recipes to find more tasty soups to make in the Instant Pot! Use the Diet Type Index to find recipes suitable for a specific eating plan. You might also like to follow Kalyn’s Kitchen on Pinterest, on Facebook, on Instagram, on TikTok, or on YouTube to see all the good recipes I’m sharing there.

Historical Notes for this Recipe:
This tasty ground beef soup was first posted in 2019. It was last updated with more information in 2023.

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