A creamy, roasted tomato soup recipe made with yellow heirloom tomatoes and topped with a piquant green harissa and croutons of pan-fried halloumi cheese. Gluten-free with vegan options.
If you have red tomatoes, make my creamy vegan roasted tomato soup instead!

Jay and I have beef about tomatoes, or at least we used to. I really shouldn't complain; on the scale of things to fight over with your partner, tomatoes rank down by the relatively harmless, such as whether to eat salad and tacos for every meal ever, or whether one person failing to refill a half-empty ice tray gives the other person grounds to call the first person a psychopath.
Anyway, once Jay discovered dry-farmed Early Girls, he turned his back on heirlooms. I don't entirely blame him (though clearly I have yet to forgive the ice tray incident). Early Girls are consistently sweet, with dense flesh and tons of tomato flavor. They're perfect for sauces, soups, and for eating in salads and on tacos (just not for every meal ever). Plus they're small, and easy to use up in a sandwich in one go.
But last year toward the end of tomato season, I found I could no longer resist the pull of the brightly hued, irregularly shaped heirlooms, and I picked out the biggest yellow tomato I could find. When Jay saw my plan, he protested, expounding in the middle of the produce aisle on how impractical large tomatoes were. So I got two of them. They were nearly as big as my head, ripe and heavy; no matter that we had a 20 minute hike home. They probably cost upwards of $20 altogether.
I brought home my prizes and cut one open, only to find that its beguiling exterior gave way to dry and pithy insides. Same with the second tomato. We unhappily ate sub-par tomato sandwiches for lunch that day. I mourned my lack of good tomato, but I also grieved something far greater: I had been wrong, and, worse still, Jay had been right.
But when life gives you pithy tomatoes, what do you do? Do you sulk in the corner? Do you throw yourself a pithy party? Do you, er, expect some empithy from your partner? (Sorry..) Well, yes, I did. But I also roasted those suckers and pureed them into soup, and it was some of the best tomato soup I'd ever had. (I even let Jay have some, just to prove how right I had been to get those tomatoes. Ha!)
This is a slightly fancied-up version of that desperate tomato soup. There are a lot of roasted tomato soups about the interwebs, but the one that stayed in my mind is the one from Honey + Jam. I made a few modifications, using yellow tomatoes in homage to my accidental tomato soup of yore. I add fennel, saffron, and smoked paprika, which boost the flavors. And I top bowls with a green harissa and cubes of pan-fried halloumi.
Roasting the tomatoes with shallots, garlic, and aromatics concentrates their flavor, meaning that you can get away with using water in the soup instead of stock, letting the tomato flavor take center stage. Everything goes into a food processor and gets pureed until fairly smooth (the fennel stays in little nubs that add texture to the finished product). There's no need to peel or seed the tomatoes, as these components aren't noticeable in the end, though they do add body and fiber. Then the puree goes into a pot with water and a touch of saffron, smoked paprika, and cream, and simmers for a bit to meld the flavors together.
While the soup simmers, you make a green harissa with parsley, cilantro, mint, lemon juice, olive oil, chile, fennel seed, and coriander. Similar to chimichurri, green harissa is a lightly spicy condiment that can go on almost anything, from grilled meats or vegetables to whole grain bowls to (our favorite) quesadillas with avocado. It's even good on tacos. When swirled into tomato soup, it adds a fresh counterpoint to all that creamy richness.
If you can keep yourself from nomming the fried halloumi straight from the pan, it adds little bursts of salty, lactic flavor to the soup, where it softens up a bit, taking on a dumpling-like consistency.
If you're looking for ways to preserve summer, a big batch of tomato soup is just the thing. It will keep for several days refrigerated, or you can freeze it (in straight-sided mason jars with plenty of room on top for expansion) for a gloomy winter's night when you may be in need of a little comfort. (Say, because someone just called you a psychopath.)
In fact I've got my eye on some other tomato soups to make before the summer ends, though I may try them with dry-farmed Early Girl tomatoes instead of heirlooms. Don't tell Jay...

Roasted Yellow Tomato Soup with Halloumi Croutons + Green Harissa Recipe
Print Recipe Pin RecipeIngredients
For the Roasted Yellow Tomato Soup:
- 4 pounds yellow tomatoes, cut into large slices (I used a mix of various heirloom varieties and cherry tomatoes)
- 8 medium shallots, peeled and quartered
- 1 medium fennel bulb, halved lengthwise and thinly sliced crosswise
- 6 large garlic cloves, peeled
- 4 tablespoons olive oil
- 3/4 teaspoon fine or kosher sea salt
- 1/2 teaspoon freshly ground black pepper
- 4 1/2 cups water
- 1/2 cup heavy cream
- 1/2 teaspoon smoked paprika
- a pinch of saffron threads, crumbled (about 1/8 teaspoon)
For the Green Harissa:
- 2 medium cloves garlic, peeled
- 1 cup cilantro leaves (soft stems ok), washed and spun dry
- 1/2 cup parsley leaves, washed and spun dry
- 1/2 cup mint leaves, washed and spun dry
- 1 jalapeño or serrano chile, stemmed, halved, and seeded (more or less to taste)
- juice of 1 large lemon, to taste
- 1/2 teaspoon cumin seed
- 1/2 teaspoon fennel seed
- 1/2 teaspoon coriander seed
- 1/2 teaspoon salt
- 1/2 cup good olive oil
For the Halloumi Croutons:
- 12-16 ounces halloumi cheese
- 1-2 tablespoons olive oil or ghee, for frying
Instructions
Make the soup:
- Position racks in the upper and lower thirds of the oven and preheat to 400ºF.
- Divide the prepared tomatoes, shallots, fennel, and garlic among two rimmed baking sheets, and sprinkle with the olive oil, salt, and pepper. Roast the vegetables until they are golden and soft, about 30 minutes. Let cool.
- Scrape the vegetables and their juices into a food processor, and blend until smooth, about 2 minutes. Scrape the mixture into a large soup pot and stir in the water, cream, saffron, and smoked paprika. Bring to a simmer, and cook, stirring occasionally, until the soup is thickened to your liking, about 20 minutes. Taste, adding more salt if you like. The flavors will continue to blend as the soup sits. It keeps well, cooled and refrigerated airtight, for up to 5 days.
Meanwhile, make the green harissa:
- In the bowl of a food processor, combine the garlic, cilantro, mint, parsley, chile, lemon juice, cumin, fennel, coriander and salt, and pulse until coarsely chopped. With the motor running, drizzle in the olive oil in a steady stream. Taste, adding more salt, lemon, or chile if you like. Scrape into a jar, cover, and chill until ready to use. The harissa will keep for up to a week or two, though it's brightest when freshly made.
Make the halloumi croutons:
- When ready to serve the soup, heat a thin film of oil in a skillet set over a medium flame. Cut the halloumi into 1" chunks and add them to the hot pan. Cook until golden on the first side, 3-5 minutes, then turn and cook on a second side until golden.
Serve the soup:
- Ladle warm soup into bowls and top with a swirl of harissa and several cubes of halloumi. Enjoy.
Notes
Sometimes two big ones are attached; I count these as two separate
shallots. Mine were roughly the size of a golf ball or a little bigger. Don't worry too much if you lack any of the spices called for here
(saffron, smoked paprika, fennel seed, cumin, or coriander). The soup will still be lovely if you need to leave any or all of them out. The harissa recipe will make more than you'll need for the soup by about double; extra harissa is fabulous on nearly anything: sandwiches, quesadillas, grilled or roasted vegetables, fish or meats, eggs, or grain bowls. Be careful when handling the chile for the harissa. Taste before adding it all if you are sensitive to spice, and wash your hands and under your nails thoroughly with soap and water after handling the cut chile lest it burn your skin. Nutritional values are based on one of six servings.
Julia@ Vikalinka says
So sorry your heirlooms failed you! I am their devotee as well. Whenever I see oddly coloured and shaped tomatoes I lose control and buy impulsively so I am with you! But you saved them! The soup is beyond beautiful and I adore the yellow colour. :-)
Alanna says
Thanks, Julia! We've had better luck with heirlooms this year, and Jay has even come to embrace them. :)
Katherine says
I had forgotten the joy of a roasted tomato. Made the puree and my house smells wonderful. Most of it (that I didn't 'sample') is in the freezer awaiting soup making as I have 5 more pounds of yellow Brandywine ripening quickly.
Alanna says
Oh, that makes me so happy Katherine! You'll have to let me know how you like the finished product. Genius to freeze the puree sans water for soup later on - I'll have to add that into the notes. Thank you!
Eileen says
I love how this is essentially the grilled cheese sandwich and tomato soup combo turned firmly on its head and smothered in harissa. We tend to do tomato and rice soup with brandy and lots of butter. Roasted tomatoes don't happen very often for some reason -- maybe because I'm too busy making them all into sauce and canning!
Alanna says
You have a way with words, girlfriend. Your tomato soup sounds insanely good!
Christine says
Ah, your ice cube tray story AND the tomato-shopping story really resonated with me and had me laughing and cringing (I hate when they are right about such things!) haha.. I also can't wait to try out your soup. It sounds delicious! I also hear so much about harissa and I'm excited to try your version!
Alanna says
Haha, thanks Christine - I'm glad you understand! You are going to LOVE the harissa - it's so freaking good and versatile. I've just discovered your site and am kind of gaga over all the delicious and unique recipes. Looking forward to many more!
Christine says
I'm definitely making your harrisa this week :) and thank you so, so much - you are the sweetest!
Allison says
Well this is just gorgeous! I love soup and using those perfect yellow tomatoes in this would be to die for. The garnishes are particularly nice! I've sadly never tried halloumi as I didn't really know how to make it. I need to give this a go! Beautiful photos and recipe, as always.
And I really enjoy the 101 cookbooks tomato soup you have there. I've made it a few times :)
Alanna says
Thanks, Allison! Halloumi is the easiest thing to to make -- a little too easy if you ask me... ;)
Ileana says
I would eat the whole pot of this tomato soup. SO. GORGEOUS.
Alanna says
Aw thank you!!!
Jacquee says
Delicious way to use extra garden tomatoes. The flavors are fabulous
Kathy says
A pretty and tasty soup. Followed the recipe closely (though I cut it in half) with yellow tomatoes from my garden with the following exception: 1) I seeded the tomatoes before roasting them, a good thing because I don't like seeds in my soup; I wish I has skinned them too, maybe after roasting, because I did get a lot of those rolled up skins; 2) I used goat cheese instead of haloumi, because that is what I had, and I wasn't quite as happy with them. Liked the harissa too, much of which also came from my garden. However, the whole thing was rather time-consuming.