Amazing 350 Cal Roasted Tomato Basil Soup

When I think about true comfort food, nothing beats a velvety bowl of tomato soup with that crunchy, cheesy hit from a grilled cheese sandwich. But why settle for dipping when you can have the best part right on top? Seriously, this Roasted Tomato Basil Soup with Grilled Cheese Croutons is going to change your weeknight dinners forever. Roasting the tomatoes first, well, that’s the magic trick! It concentrates all that gorgeous garden sweetness and gives the soup this unbelievable depth you just can’t get from canned stuff. I’m so excited to share this absolute winner with you. You can read a little more about our kitchen philosophy over at our about page if you’d like!

Why You Will Love This Roasted Tomato Basil Soup with Grilled Cheese Croutons

Honestly, this recipe took my standard weeknight soup game and turned it totally gourmet. It’s just incredible. You’re going to adore:

• The unbelievable depth of flavor achieved just by roasting the tomatoes—it brings out all that natural sugar!
• Saying goodbye to soggy bread! These Grilled Cheese Croutons stay perfectly crisp on top.
• It’s a fantastic vegetarian dinner that tastes like it simmered all day.
• This recipe for Roasted Tomato Basil Soup with Grilled Cheese Croutons is shockingly fast for how rich it tastes.

Essential Ingredients for Roasted Tomato Basil Soup with Grilled Cheese Croutons

Okay, getting the right ingredients is half the battle, and this soup is all about what you put on the roasting pan! Don’t skimp here; these fresh veggies make all the difference for that deep flavor you want in your Roasted Tomato Soup Recipe.

First, let’s talk soup base. You absolutely need about 3 lbs of ripe tomatoes, and make sure you halve them before they hit the oven. I also use one big yellow onion, quartered, and four cloves of garlic—leave the skins on for roasting, trust me! We coat those with three tablespoons of olive oil, salt, and pepper. Then, once everything is blended, we bring in four cups of vegetable broth and about a half cup of fresh basil leaves. If you want that amazing creamy finish, grab a quarter cup of heavy cream, but that part is optional!

Now for the real stars of the show—the topping! For the Easy Grilled Cheese Croutons, you’ll need four slices of good white bread. Grab some sharp cheddar cheese (I like it sliced) and two tablespoons of butter, making sure it’s softened so it spreads like a dream onto the bread.

Ingredient Notes and Substitutions

If you look at the list and think, “Oh no, I’m out of vegetable broth,” don’t panic! You can absolutely use chicken broth instead, or even good old water with a sturdy bouillon cube dissolved in it. The better the broth, the better the final taste of your Roasted Tomato Soup Recipe, though.

The key here, more than anything, is the ripeness of your tomatoes. If you use those firm, pale tomatoes from January, they won’t caramelize right. You need tomatoes that are bursting with summer flavor, because roasting them is what concentrates that flavor into something truly special for a From Scratch Tomato Soup. Go for Roma or vine-ripened varieties for the best results!

How to Make Roasted Tomato Basil Soup with Grilled Cheese Croutons

This is where we turn simple veggies into culinary gold! The entire process for the soup base is about 50 minutes total, and trust me, it’s worth every minute when you taste that concentrated flavor. You’ll want to start by getting your oven screaming hot—preheat it to 400 degrees F (200 degrees C) right away. If you’re looking for more great kitchen advice while you wait, check out my cooking blog!

Roasting the Vegetables for Deep Flavor

This is the secret sauce, folks! We toss those halved tomatoes, the onion quarters, and those sweet, unpeeled garlic cloves with three tablespoons of olive oil, salt, and pepper. Spread everything out nicely on a baking sheet so they can breathe and get happy in the heat. Then, pop them in for about 35 to 40 minutes. You’re looking for them to be soft and just starting to get those dark, caramelized edges. That caramelization is what makes this Roasted Tomato Basil Soup taste rich instead of tinny—it’s deep, concentrated tomato flavor!

Once they come out, let the garlic cool down a bit. Once you can touch it, squeeze those lovely, sweet roasted garlic cloves right out of their papery skins. Toss the roasted veggies—garlic and all—into a big pot!

Creating the Smooth Homemade Basil Soup Base

Next up, pour in your four cups of vegetable broth. Put the pot on the stove and bring that mixture up to a gentle simmer over medium heat. Let it hang out there for about 10 minutes. This lets all those roasted flavors mingle with the broth properly. After that, take it *off* the heat—this is important! Stir in your big handful of packed fresh basil leaves. Now, blend it until it’s perfectly smooth—that’s how we get that wonderful From Scratch Tomato Soup consistency. I use an immersion blender right in the pot because I hate washing extra dishes, but you can carefully use a blender in batches. If you want it super refined, use a fine-mesh sieve to strain it before returning it to the pot. Finally, stir in that heavy cream if you’re going decadent, and just heat it gently—don’t let it boil once the cream is in!

Preparing the Easy Grilled Cheese Croutons

While the soup is simmering, we make the topping that makes this the ultimate Soup and Sandwich Combo! Butter one side of each bread slice very evenly with that softened butter. Place two slices, butter-side down, in a skillet over medium heat. Stack two slices of cheddar on top of each, then place the remaining bread on top, butter-side up. You want a nice, medium heat so the cheese melts before the bread burns!

Grill these beauties for about 3 or 4 minutes a side until the bread is golden brown and you can see that cheese melting gorgeously in the middle. Now, pull them off and cut them into small, bite-sized cubes—these are your Easy Grilled Cheese Croutons! We’re finishing this magnificent Roasted Tomato Basil Soup with Grilled Cheese Croutons by setting them right on top before serving hot!

Tips for the Best Roasted Tomato Basil Soup

You’ve got the recipe down, but let me share a few little tricks I picked up over the years to turn a home-blended soup into something truly memorable. These small adjustments make a huge difference when you’re aiming for that perfect texture and flavor profile.

First off, about texture: if you really want that ultra-silky, restaurant-quality feel but you’re trying to keep the fat down (or maybe you skipped the heavy cream), try straining the soup after you blend it! Yes, it’s extra work, but pushing that smooth mixture through a tight-mesh sieve really catches any seeds or stubborn bits of tomato skin. It makes the soup taste incredibly luxurious.

Another thing I always do for flavor adjustment is taste *before* adding the basil. Once the basil goes in, its bright, peppery flavor dominates. If your tomatoes were a bit bland (maybe it wasn’t peak summer), you might want to add a tiny pinch of sugar or even a dash of balsamic vinegar right *before* the basil goes in. Balsamic adds that wonderful acidic punch that wakes up tired tomatoes but you don’t want it competing with the fresh herbs.

My third must-do tip relates to blending safely! If you are using a standard blender instead of an immersion stick blender, be super careful. Hot liquids expand rapidly. Never, ever fill your blender past the halfway mark, and always leave the center cap of your lid open a crack (just cover that hole with a folded kitchen towel!) to let the steam escape. Trust me, you don’t want a tomato explosion all over your cabinets—I learned that the hard way back when I was testing out these savory snack recipes!

Serving Suggestions for Your Roasted Tomato Basil Soup with Grilled Cheese Croutons

We’ve got the main event ready to go—that gorgeous, soul-warming Roasted Tomato Basil Soup with Grilled Cheese Croutons—but presentation always matters, right? Even simple comfort food deserves to feel a little special. Since this dish is already a full-on meal with the soup and the cheesy topping, you barely need anything else!

If you want to keep the focus entirely on that perfect soup and crouton pairing, I suggest pairing it with something light and tangy on the side. A small arugula salad with a simple lemon vinaigrette is perfect. The peppery bite of the arugula cuts right through the richness of the soup and the melted cheese beautifully. Plus, it adds that lovely green color to the plate!

If you’re hosting a casual fall gathering or just want to lean into that whole “warm soup recipes for fall” vibe, think about a small dipping side. While the croutons are divine, sometimes a little extra something for dipping is fun. I sometimes make a very sharp, slightly sweet cheese dip—you could check out how I make my Sharp Cheddar Apple Cider Fondue, but use just half the cider and serve it in a tiny ramekin right beside the bowl for extreme dipping.

Finally, for presentation, don’t just dump all your Gourmet Grilled Cheese Topping on at once! Serve the soup piping hot, and put a small bowl of the croutons on the table so people can add their own as they go. That way, the top layer stays crunchy until the very last bite. Enjoy it!

Storage and Reheating Instructions for Roasted Tomato Basil Soup

We’ve all been there—you make a giant pot of the most amazing Roasted Tomato Basil Soup with Grilled Cheese Croutons, and suddenly, you’re staring at leftovers! Good news: this soup stores beautifully because we roasted those vegetables for depth. It’s one of the best aspects of a great From Scratch Tomato Soup recipe.

You can definitely make this ahead of time! Once the soup is completely cooled—and I mean cool to room temperature, don’t put hot soup straight into the fridge—transfer it to an airtight container. It keeps wonderfully in the refrigerator for up to five days. That’s plenty of time to enjoy the leftovers over a few lunches!

Now, when you’re ready to reheat, you have to be a little careful, especially if you added that optional heavy cream. If you used the cream, you want to reheat it gently over medium-low heat on the stovetop, stirring often. The rule here is simple: heat it through, but do not, under any circumstances, let it boil. Boiling cream can sometimes cause it to separate or develop an odd texture, and we definitely want to avoid that soapy texture.

If you skipped the cream entirely, you’re totally safe to bring it up to a more robust simmer, but give it a taste first. Sometimes the flavors deepen overnight, and you might not need as much salt or basil as you did on day one! If you’re reheating just a single serving, the microwave works fine, just stop every minute or so to give it a stir.

And what about the croutons? Well, the Grilled Cheese Croutons are best made fresh right before serving. They will get soggy if you store them mixed in with the liquid soup! Store the leftover soup separately, and when you reheat, quickly make a fresh batch of croutons—it only takes about 10 minutes, and that fresh crunch makes the whole bowl feel brand new again!

Frequently Asked Questions About This Comfort Food Soup Recipe

I know you probably have a few questions swirling around, especially if you’re trying to adapt this recipe to fit your pantry or your schedule. That’s totally normal! Think of this as the FAQ section for making the absolute Best Tomato Basil Soup. We want to set you up for success, whether you’re whipping this up for a quick Vegetarian Soup Dinner or planning ahead for guests.

Can I make Roasted Tomato Soup Recipe ahead of time?

Oh yes, absolutely! Making things ahead is the best way to manage time in the kitchen. You can certainly make the soup base—the roasted and blended part—a day or two in advance. Store it covered tightly in the fridge. When you reheat it, just remember what I said earlier: keep it gentle if you put the cream in. Flavor-wise, I actually find that the roasted tomato taste deepens up a bit overnight, which is fantastic! But, you should hold off on the fresh basil until you are ready to reheat and serve. Fresh basil loses some of its vibrant punch if it sits simmered for too long.

What cheese works best for the Gourmet Grilled Cheese Topping?

While I use aged cheddar because it melts beautifully and has that fantastic sharpness that pairs with the sweet tomatoes, you have so many great options for your Gourmet Grilled Cheese Topping! If you want something super gooey, Monterey Jack or Provolone are amazing choices. They have great “cheese pull.”

If you’re feeling fancy for a special occasion, try mixing Fontina with a little bit of Gruyère in your sandwich. That combination gives you an incredible nutty flavor that elevates the standard grilled cheese way up! Just make sure whatever cheese you pick is sliced reasonably thin so it melts through evenly before your bread starts burning!

And just a side note—if you are making this for a friend who’s dairy-free, you can still make a fantastic crouton topper using vegan butter and your favorite vegan cheddar slices. It works great!

Estimated Nutritional Information for Roasted Tomato Basil Soup with Grilled Cheese Croutons

I’m happy to share the numbers, but you have to promise to take them with a massive grain of salt, okay? Because honestly, once you start adding extra olive oil for roasting or deciding to sneak in extra cheese for your Gourmet Grilled Cheese Topping, these numbers are going to jump around!

The nutrient breakdown I’m giving you here is based strictly on the written recipe—that means we are calculating for about 1.5 cups of the soup plus the standard amount of croutons per serving, and we’re assuming you used the heavy cream mentioned in the ingredients list. Think of this as Option A, the benchmark version!

Here’s what we’re looking at for one serving:

• Calories: Roughly 350 calories. Not bad for such a decadent bowl of warm comfort food!
• Fat: About 18 grams total, with 8 grams listed as saturated fat. That’s mostly coming from the butter and cheese in those amazing croutons, naturally.
• Protein: We’re looking at around 14 grams, thanks mainly to the cheese.
• Carbohydrates: Around 35 grams, which is mostly from the natural sugars in the tomatoes and the bread in the topping.
• Fiber: You get a nice boost here, about 6 grams, thanks to all those blended vegetables!
• Sodium: Approximately 450 mg. This can vary a *lot* based on the salt you add and the sodium content in your vegetable broth, so always taste before adding seasoning at the end!

I always encourage people to check the labels on their specific brands of broth and cheese, because that’s where rogue sodium and fat content likes to hide out!

Share Your Experience Making Roasted Tomato Basil Soup with Grilled Cheese Croutons

Now that you’ve got the perfect bowl of flavorful soup topped with that crunchy, melt-in-your-mouth goodness, I absolutely need to hear about it! This is what cooking is all about—sharing the delicious results with people who appreciate a good bowl of comfort food.

Did you manage to carve out time to roast those tomatoes perfectly, or did you sneak the process in while running errands? I’m dying to know: what was your favorite part? Was it the unbelievably rich flavor of the Roasted Tomato Basil Soup, or was it that moment you bit into the crispy, cheesy goodness of the Grilled Cheese Croutons?

Please leave a rating for the recipe right down below so other folks know what’s up! And if you snapped a picture while you were enjoying this wonderful dinner, tag me on social media! I love seeing your creations, whether you stuck exactly to my proportions or maybe added a twist, like using Gruyère for an extra gourmet topping. You can reach out to me through my contact page anytime with questions or just to say hello!

Go ahead and share all the details—I’m already looking forward to reading your comments and stories about this ultimate comfort food combo!

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