Easy Keto Tomato Soup

Looking for a delicious and easy keto tomato soup recipe? Look no further! This soup is low carb, healthy, and perfect for a quick and easy meal. Tomato soup keto style is classic comfort food and does not disappoint! I will show you how to make this tasty soup in just a few simple steps. So give it a try today and see how you like it!

This keto tomato soup recipe is perfect for anyone on a low carb diet. It’s healthy, easy to make, and absolutely delicious. I hope you will absolutely love it as much as me! Plus, it’s the perfect comfort food for those chilly winter days.

In a hurry?

While I think you’ll love my super helpful tips and fun stories, I also realize we are sometimes pressed for time and just need a good recipe! Scroll down to the bottom of the page for the printable recipe card or PIN it for later!

Read on or skip down to the recipe card to get started on your own batch of Creamy Keto Tomato Soup right now. Or check out my recipe for another favorite, Keto Italian Sausage Soup (my variation on keto Zuppa Toscana!), or this fabulous bolognese sauce recipe I’ve been eating as a soup lately.

Fresh or canned tomatoes?

In order to make a delicious homemade tomato soup keto style, you don’t always need to have fresh tomatoes, although I admit I prefer them. There’s still a huge difference between a canned tomato soup packed with sugar and preservatives and one you make on your own using organic canned roasted tomatoes. If you use canned, make sure they’re organic and have no added sugar.

If you want to use fresh tomatoes, look for ones that are ripe but still firm, with smooth skin and no blemishes or bruises. Creamy keto tomato soup can be made from any kind of tomato; beefsteak, Romas, early girl, or even mini Romas or cherry tomatoes!

Summer garden bounty

Personally, I love to make tomato soup at the end of August and into September when I have tons of fresh tomatoes and basil to use up. However, you can make a delicious roasted tomato soup all year long by using canned tomatoes and dried basil if necessary.

How to store tomatoes

The best way to store tomatoes is at room temperature on the counter. However, if you have too many tomatoes or they’re about to go bad, I like to blend them up or dice them. Then simply put them in a freezer bag and freeze them for when you’re ready to make soup.

Is tomato soup keto?

Yes! Creamy tomato soup is a fabulous keto hearty soup because it’s low in carbs and has a delicious traditional flavor.

This recipe for low carb tomato soup makes five servings with 158 calories each, 6 grams of protein, 11 grams of fat, and 8 grams carbs.

These macros are figured with MyFitnessPal, with the specific ingredients I use in the recipe. I always recommend figuring your own with the exact items you use. It’s especially important to determine your own if you’re keeping close track and want to be accurate.

How to roast tomatoes for the best low carb tomato soup

If you have time, roasting your own tomatoes will give this low carb keto tomato soup incredible flavor! And it’s so simple. Just preheat your oven to 425 degrees, then slice your Roma tomatoes in half and place them skin side up on a baking sheet. Drizzle the tomatoes with olive oil and season with salt & pepper. Roast for 30 minutes or until skins start to brown slightly.

Then let the roasted Roma tomatoes cool just enough to handle safely, peel off their skins, and proceed as described in the recipe!

Equipment needed for a keto tomato soup recipe

What equipment will you need to make a good keto tomato soup? A blender or an immersion blender. I use my Vitamix blender, but any high-powered blender should do the trick. If you’re using an immersion blender, make sure it has a good blending wand to get the soup really smooth and creamy.

• blender or immersion blender
• Dutch oven or soup pot
• measuring cups and spoons
• a spatula or large spoon
• knife and cutting board
• ladle

Ingredients in low carb tomato soup

• 32 oz fresh or canned diced tomatoes
• 1/4 cup chopped onion
• 2 minced garlic cloves (or substitute 1 tsp garlic powder)
• 2 cups fresh basil (or 2 tbsp dried)
• 1 cup chicken bone broth
• 4 oz cream cheese
• 1 tbsp butter or coconut oil
• 1/2 tsp ground black pepper
• 1 1/2 tsp salt
• 1/4-1/2 tsp cayenne pepper (for your desired heat preference)
• 1 tbsp Confectioner’s Swerve (optional)

Optional toppings

• parmesan cheese
• sour cream
• fresh basil to garnish

For the best soup, choose the best ingredients. In fact, this is the most important part of any recipe. Tomato soup keto or not, it’s always better if you use fresh good-quality organic ingredients.

Instructions: How to make creamy keto tomato basil soup

In a large Dutch oven or soup pot over medium-high heat, melt the butter and then swirl it around the bottom of the pan.

After that, add in the chopped onions and saute them in the butter until translucent (about three to five minutes). Add the garlic and cook one more minute – just breathe in that fragrant garlic! (Or maybe I’m the only one who likes to do that?)

Next, in a blender, add in the cream cheese, tomatoes, bone broth, basil, and onion mixture, and blend on high for 30-40 seconds or until well blended.

If you prefer a chunkier soup, don’t blend as long. If you prefer a smoother soup, blend until you reach your desired consistency.

Cream cheese vs. heavy cream

A note on the cream cheese. Some people prefer to use a basic heavy cream in keto tomato soup. However, I often use cream cheese in keto soups and tend to prefer it to heavy cream. You may always switch these two out.

Dairy-free option for creamy keto tomato soup

One more quick tip. This recipe calls for dairy, but if you’re looking for a dairy-free keto tomato soup recipe, there are only a couple of changes to make.

Simply switch out the butter for coconut oil and coconut milk or coconut cream for the sour cream. Boom! Easy and delicious.

Now, pour everything back into the Dutch oven or soup pot, and cook on high until it just begins to boil. Then turn down the heat to medium-low so the soup simmers.

Then add the salt, black pepper, Swerve Confectioner’s (if you’re using it), and cayenne pepper (or red pepper flakes) to taste.

Cover and simmer for 20-30 minutes. It will also darken to a beautiful dark red color and the smell of fresh tomatoes will fill the air.

To me, this is the perfect smell for late summer when all those tomatoes are ripening on the vines.

How to serve keto tomato soup

Ladle the soup into bowls and serve warm with a swirl or dollop of sour cream and chopped fresh basil. My daughter also loves to add some shredded parmesan cheese to the mix!

What to eat with this keto tomato soup recipe

What goes better with a delicious recipe for tomato soup than grilled cheese sandwiches? You can always use keto bread or low carb bread, but to be perfectly honest, I have a better idea.

At least for me, I forgo the idea of “bread” altogether and grill my cheese directly.

Whaaa!?! (You are probably thinking.)

Keto grilled cheese “sandwich” without the bread

Most cheeses will not hold up structure-wise to grill. I’m going to let you in on my little secret – there are a couple I use all the time, you just have to look for them!

Are you ready for my super SECRET TIP for Keto Grilled Cheese?

Well, there are certain cheeses that don’t melt when grilled or fried?

The two I’ve been able to find around here are either Halloumi or Paneer cheese.

Halloumi cheese

Halloumi cheese is a Greek cheese made from sheep and goat milk. It’s firm, has a high melting point, and doesn’t get all gooey when heated.

Paneer cheese

Paneer is an Indian cheese made from cow milk. It’s also firm with a high melting point and doesn’t turn to mush when heated. Paneer is consistently stocked at our local Costco.

So, if you’re looking for the perfect Keto grilled cheese to go with your Tomato soup, try using Halloumi or Paneer!

Cut 1/2 inch slices of either Halloumi or Paneer cheese and spray or paint them with olive oil. Paneer generally does not have salt, so sprinkle it with a little salt and pepper and grill for three to four minutes on each side.

Then, serve them up to dip in the bowls of tomato soup.

Why homemade tomato soup?

Personally, I love tomato soup. Is it worth making at home?

Tomatoes are a little higher in carbs than other produce, but if you plan out your macros, tomato soup is a delicious and easy recipe with a fabulous creamy texture. It’s a summer staple for me even on the keto diet.

Now, why do I prefer homemade tomato soup keto style to Campbell’s tomato soup or any other canned soup?

Well, it’s simple.

I know exactly what goes into the soup. I can control the quality of the ingredients and how much sodium is in it.

Plus, when I make tomato soup at home, it just tastes fresher and more flavorful, especially when I use home-grown tomatoes and basil.

Delicious recipes, low carb recipes, gluten-free recipes

With keto tomato soup, you hit them all – keto, low carb, gluten-free, nut-free, and delicious! Your taste buds with thank you, and it can all be done on a ketogenic diet.

If you’ve never made homemade tomato soup, I urge you to try it. It’s really not that hard and the taste is worth the little bit of extra effort!

👩‍🍳 More keto recipes: low carb soups

1. Creamy Keto Italian Sausage Soup
2. Best Keto Chili With Bacon
3. Keto Broccoli Cheese Soup
4. Low Carb Green Chili Chicken Chowder
5. Keto French Onion Soup
6. Keto Thai Coconut Soup
7. Keto Chicken Enchilada Soup

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Nutrition Disclaimer

Please be aware I am not a medical specialist or nutritional professional. On this blog, I share recipes and what works for me. Please do not take anything on this blog as medical advice and always consult with your doctor before starting any diet or exercise program.

I use MyFitnessPal.com to calculate nutrition facts as a courtesy to my readers, and I remove erythritol from the final carb count and net carb count because does not affect my own blood glucose levels.  

This is as accurate as possible, but it’s best to independently calculate nutritional information on your own with the specific ingredients you use. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.