Low Carb Tomato Soup: Easy and Delicious
This is our favorite and the only low carb soup we’ll eat. I LOVE tomatoes but my family only likes them when they’re cooked in things like pizza sauce or spaghetti. This low carb tomato soup (roasted tomato basil soup), however, they all get excited about when I make it. It’s SUPER easy, and no heavy cream (dairy-free), and no sugar!!!
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This is the perfect keto tomato soup recipe for those who are counting net carbs or are on a keto diet.
First you’ll need tomatoes. This recipe is adjustable to make as much or as little as you like.
Low Carb Tomato Soup Ingredients
- You’ll need 12 medium tomatoes
- Olive Oil
- Salt & Pepper
- Fresh Basil Leaves
You can use Roma tomatoes, regular tomatoes, or a mixture of both. If you use Roma tomatoes you will probably want to add more. In these photos I used a mix and I used about 20 tomatoes as most of them were Roma’s from my garden.
Roasted Tomato Basil Soup Video
Low Carb Tomato Soup Instructions
Cut the tomatoes in 1/2 and place in a single layer on a cookie sheet or two (or a pan of your choice).
Drizzle with olive oil (about 2-3 tablespoons)
Add salt and pepper to taste (I sprinkle salt & pepper over all the tomatoes)
Bake in the oven at 400 degrees for approximately 25 minutes. When you roast the tomatoes it intensifies the flavor!
Now that you have roasted tomatoes, place the tomatoes in a blender (or you could use an emersion blender) and add fresh basil leaves. Add as many or as few as you like. The more you add, the stronger the basil flavor.
Serve immediately. If it needs a little warm up cook it in a saucepan or soup pot or place in a crock-pot to simmer and keep the flavor growing and serve later.
We serve with fresh Parmesan on top. Enjoy!
This is perfect paired with a grilled cheese sandwich or crusty bread and butter!
Store leftovers in an airtight container in the fridge.
Check out some of my other soup recipes!
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What else could you add to this low carb tomato soup?
You can add several vegetables and other ingredients if you’d like to this soup. Some of these might change the “low carb nature”.
- garlic or garlic cloves
- onions
- chicken broth, bone broth
- coconut cream
- herbs like oregano, basil, thyme, Italian seasonings
Roasted Tomato Basil Soup
Ingredients
- 12 medium Tomatoes
- Olive Oil
- Salt & Pepper
- Fresh Basil Leaves
Instructions
- Cut the tomatoes in 1/2 and place in a single layer on a cookie sheet.
- Drizzle with Olive Oil (about 2-3 TBSP)
- Add Salt & Pepper to taste.
- Bake at 400 degrees for about 25 minutes
- Place the tomatoes in a blender and add fresh basil leaves.
- Blend and serve
Video
Notes
Oh, that sounds so good! We just used the last of our homegrown tomatoes, so I’m saving this for next season. I’m one of those people who only likes fresh homegrown tomatoes. I only buy grocery store tomatoes for my husband. He likes them no matter where they come from.
Thank you Linda. You are right, homegrown ones are the most delicious! We also make this in the summer with those fresh tomatoes and freeze a few batches so we can have it in the winter time with grilled cheese sandwiches. 🙂
I just revisited this recipe as I was thinking of summer. I can hardly wait until August when I can get fresh tomatoes for home canning. We ran out already, so I have to do more next year. As I was reading the comments about only liking cooked tomatoes, it dawned on me that cooking tomatoes actually increases their lycopene which is extremely good for your heart. While cooking did decrease the vitamin C by 29%, it also raised the lycopene by 164%! So cook up some tomatoes as a way to keep your heart healthy.
That is super awesome information Linda, thank you for sharing 🙂
Mmmm…. this looks so good, my friend! What time shall I come over for supper? hehehe 🙂 I am like your family and I don’t care for tomatoes unless they are cooked. I love a good tomato soup and this looks like the perfect recipe. Thanks for sharing!
Hugs! Stephanie-The Enchanting Rose
Thank you Stephanie and yes, I would love to have you over for dinner 🙂 Hugs
Oh my goodness this sounds so very good, I am ready for a warm bowl right now! I am your neighbor at the Modest Mom Blog link up this morning!
Thank you so much and howdy neighbor it’s so nice to meet you!!!
Sounds amazing. Thanks for sharing on More the Merrier Monday link party!!
Thank you Jamie, and thanks for stopping by 🙂
This couldn’t be any easier and it sounds delicious. Tomato soup is my all time favorite soup. So glad you shared with us at Merry Monday. Sharing.
Thank you Shirley, thanks for having a wonderful place for all of us to share our ideas 🙂
I’m not a tomato soup person but I think my husband would absolutely love this recipe! Thank you for sharing with us at Designing You!
I totally get it Trudy. I love tomatoes but never liked tomato soup – mostly because cans put too much sugar in them. I really enjoy this recipe and I hope your husband loves it too 🙂
That sounds so good and so easy! Pinned.
Thank you and thanks for the Pin! 🙂
Wow! That’s it?! I’ve never made tomato soup before. I didn’t know it was this easy. I think I’ll have to try this one – and teach it to my daughter too! Thanks!
Thank you Janice, and yes I love easy 🙂 I am so excited that you want to teach it to your daughter!
This sounds so tasty! I love tomato soup. Thanks so much for sharing at the #happynowlinkup!
Thank you Leslie, and thanks for stopping by
Great idea so much better than canned that has added sugar. Would freeze well. I am going to make it.
I’m so excited you want to try it Carm, thanks! Let me know how you like it. Yes we freeze batches of it so we can eat it in the winter months too 🙂
Excellent recipe! Absolutely love tomato soup too. This year I am growing Roma, San Marzano, beefsteak and 2 varieties of cherry and grape tomatoes. Wish I had room for more! Will be make a lot this summer. Thanks for your super easy recipe. I put garlic in mine sometimes too.
Thank you so much Naomie and I love your variety of tomatoes. Me too! We’ll be tomato eating fiends together 😉 Thanks for the tip on the garlic addition. Hugs to you my friend.
Thanks for the feature. Thank you for hosting! This is what I featured the week of 7-27 to 8-1 on my blog. On Tuesday was Spanokopita aka Spinach Pie. Wednesday was a Strawberry Puree. Thursday were Chocolate Whoopie Pies. And winding up this week was my post, Tip Friday Scraping the Bowl. Enjoy!
You’re most welcome & thanks for joining the party Marilyn, can’t wait to see your latest.
Chas, how did you know I still had 8 lbs of Roma tomatoes leftover from the 50 lbs. I was canning yesterday? I will roast them and make this soup. I don’t think I know you had a garden! Thanks for the easy and great recipe!
Thank you so much Mary, I’m thrilled you want to try the soup. We really like it plus no sugar. So many people put sugar in their tomato soup. I am envious of your bounty! We do have a decent garden… always fighting the critters, disease, and neighbors trees suckering in it! Ugg the garden life lol.
Your soup looks delicious, it’s something everyone in my family would like. And not to hard either. thanks for sharing.
Thank you so much Andrea, I’m thrilled you think your family might like it too. It’s so easy – best kind of recipe right???
This recipe sounds great! Roasting always brings out so much flavor so this sounds PERFECT for those early Fall days. I can even imagine freezing some of this for the ultimate grilled cheese and tomato soup combo.
Thank you so much Rachael. We absolutely love it and can’t wait to have it every year when our tomatoes ripen. Yes you are so right, we do freeze several batches for the winter with grilled cheese. Great minds think a like 😉
Chas,
This sounds so delicious! I’m definitely saving this. Thanks for sharing with us at Charming Homes and Gardens Link Party! Look for your feature on Wednesday!
Rachel.
Thank you so much Rachel, I’m thrilled you like it and want to give it a try. Thanks for a great party, I’ll see you at the next one.
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Thank you for sharing at #OverTheMoon. Pinned and shared. Have a lovely week. I hope to see you at next week’s party too! Please stay safe and healthy. Come party with us at Over The Moon! Catapult your content Over The Moon! @marilyn_lesniak @EclecticRedBarn
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Thank you so much Marilyn, I truly appreciate the support.
A perfect post to match the state of my garden. Thank you!
Thank you Terri and I’m so excited that this might work for you too. We absolutely love it and freeze it for later.
This looks so good! I am definitely pinning this so I can come back and make it. Look for your feature tomorrow on Charming homes and Gardens.
Thank you so much Kim and I’m thrilled you want to try it. Thank you so much for the feature – made my day! I’ll see you at the next party.
Wow. That looks heavenly, I’d love to try this!
Thank you so much Terry
How much basil do you add?
You can add as much or as little as you like. I would suggest starting with about 3 leaves and tasting it, you can always add more.