Roasted Tomato Basil Soup


Is there a soup that says summer like a homemade tomato basil soup does? I’ve always loved tomato soup, anything but the canned kind though. This time around I roasted the tomatoes, onions and garlic to give the soup more depth of flavor and it really made the soup over-the-top delicious!

Roasted Tomato Basil Soup In Bowl With Croutons

Tomato Basil Soup

This soup requires minimal ingredients but yields such amazing results! Here you combine several pounds of fresh tomatoes (which you roast to perfection), several cups of fresh basil and a fair amount of garlic.

And it doesn’t take much more then that – some broth, some onions, some time on the stove, a good pureeing and you’ve got an unbelievably delicious homemade tomato soup!

Also with that said when a recipe consists of mainly those ingredients you know it’s got to be good! This is the perfect use for the abundance of tomatoes you have in your garden in the summer or those you’ll find at the farmers market.

Roasted Tomatoes For Tomato Basil Soup

A Healthier Tomato Basil Soup

Looking to make it healthier? Well the soup itself is what I’d consider very healthy but if you want to keep it extra healthy you can just serve the soup sans grilled cheese croutons but if you want to go all out, definitely include them! They really just make the soup that much better.

Roasted Onions To Add To Homemade Tomato Basil Soup

I Love the Grilled Cheese Croutons!

Yes just picture it, a perfectly toasted, golden, crisp crusted, gooey, melty grilled cheese crouton soaking in a perfectly fresh roasted tomato basil soup.

It’s heavenly and you need to try it! Summer produce was made for things like so.

Making Tomato Basil Soup in Pot With Roasted Tomatoes

A Fresh Comforting Soup

This is how you do comfort food. A really healthy soup with smaller portions of grilled cheese included. It’s pretty much genius :).

I mean this soup will pretty much become one of your highlights of summer. All that fresh goodness in one bowl of bliss!

Homemade Tomato Soup With Fresh Basil

Ingredients for Tomato Basil Soup

Another thing to love about this recipe is that it doesn’t call for a big long list of ingredients. Here’s what you’ll need:

  • 2 1/4 lbs Roma tomatoes  and 1 1/4 lbs Cherry tomatoes
  • 4 1/2 Tbsp olive oil
  • Salt and freshly ground black pepper
  • 8 cloves garlic , peeled and left whole
  • 2 small yellow onions , sliced just under 1/2-inch thick
  • 2 cups (32g) lightly packed fresh basil leaves
  • 4 – 5 cups low-sodium vegetable broth

Then of course don’t forget about those cheesy croutons if you want those as well!

Tomato Basil Soup With Grilled Cheese Croutons

Other Easy Tomato Soup Recipes

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Roasted Tomato Basil Soup

5 from 11 votes

This soup requires minimal ingredients but yields such amazing results! When you combine several pounds of fresh tomatoes, several cups of fresh basil and a fair amount of garlic you know it's got to be good.

Servings: 6
Prep Time 10 minutes
Cook Time 1 hour 5 minutes
Total Time 1 hour 15 minutes


  • 2 1/4 lbs Roma tomatoes , halved lengthwise
  • 1 1/4 lbs Cherry tomatoes
  • 4 1/2 Tbsp olive oil
  • Salt and freshly ground black pepper
  • 8 cloves garlic , peeled and left whole
  • 2 small yellow onions , sliced just under 1/2-inch thick
  • 2 cups (32g) lightly packed fresh basil leaves
  • 4 - 5 cups low-sodium vegetable broth
  • Grilled cheese croutons (optional), see notes


  1. Preheat oven to 425 degrees. Place tomatoes on a rimmed baking sheet and toss with 3 Tbsp olive oil then season with salt and pepper (place Roma halves cut side upright).
  2. Place onion slices and garlic on a rimmed half sheet and toss brush with remaining 1 1/2 Tbsp olive oil on all sides, sprinkle with salt and pepper.

  3. Place baking sheet with tomatoes and half sheet with onions in oven side by side and roast onions 30 - 35 minutes until edges are golden, and tomatoes 40 - 45 minutes until golden. 

  4. Peel away any burnt papery layers of onions if there are any. Pull peels from tomatoes. 

  5. Pour onions and tomatoes into a large pot. Add 4 cups vegetable broth and the basil. Season with salt and pepper to taste. 
  6. Bring to a boil then reduce heat and simmer 20 minutes, adding an additional 1 cup vegetable broth to thin as desired. 
  7. Blend soup with an immersion blender or in small batches in a blender (only fill blender half full and remove center insert and cover with a kitchen towel). Serve warm topped with grilled cheese croutons if desired.

Recipe Notes

  • For the grilled cheese croutons use 6 slices of hearty sandwich bread, brush outsides of all slices with 1/2 Tbsp of butter on each. Sprinkle about 1/2 cup (2 oz) shredded mozzarella or cheddar over non-buttered sides of three slices. Top with remaining 3 slices of bread with buttered side up. Cook in a non-stick skillet over medium heat, reducing to medium-low as needed, until bottom is golden brown. Flip and cook opposite side until golden. Cool just slightly then cut into squares.
  • Recipe source: inspired by Tyler Florence
Nutrition Facts
Roasted Tomato Basil Soup
Amount Per Serving
Calories 170 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 1g6%
Sodium 648mg28%
Potassium 702mg20%
Carbohydrates 17g6%
Fiber 3g13%
Sugar 9g10%
Protein 3g6%
Vitamin A 2635IU53%
Vitamin C 50.2mg61%
Calcium 57mg6%
Iron 1.6mg9%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Soup
Cuisine: American
Keyword: Tomato Basil Soup
Calories: 170 kcal
Author: Jaclyn
Roasted Tomato Soup With Basil and Grilled Cheese Croutons


  • Dani: Have you tried freezing this!? Sounds absolutely wonderful! July 6, 2019 at 7:29pm Reply

    • Jaclyn: I haven’t yet but I think it should freeze well. July 7, 2019 at 10:10pm Reply

  • Melissa: Can I use dried basil? I forgot to grab some at the store 🤦🏼‍♀️ May 8, 2019 at 11:51am Reply

    • Jaclyn: Yes I’d start with 1 tsp and go from there. Then next time try it with fresh basil :). May 8, 2019 at 6:42pm Reply

  • DeborahMaloney: What about the garlic???? Do I add that
    Too? April 1, 2019 at 2:00pm Reply

    • Jaclyn: It’s there in step 2 :). Hope you enjoy! April 1, 2019 at 5:11pm Reply

  • Julie Reed: Love this… perfect, clean, light, but filling and perfect for these cold winter months. I have been making this soup for about 2 years now! Great with, of course, grilled cheese, and I make mashed potato/cauliflower topped with saute mushrooms on the side. Thank you for this great recipe. March 2, 2019 at 1:32pm Reply

  • Kathy: This is the best, yummiest, tomato basil soup EVER!!! February 25, 2019 at 6:57pm Reply

  • Heather: How many servings or how big is a serving February 19, 2019 at 2:24pm Reply

  • Tracy M Burt: Do you pour the juices from the cooked tomatoes into the pot? The juices from where they baked? January 14, 2019 at 12:17pm Reply

    • Jaclyn: Yes add those in as well. January 30, 2019 at 11:42pm Reply

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