Roasted Tomato Soup with Grilled Cheese

Featured in: Simple One-Pan Olive Comfort Meals

This classic comfort dish combines silky roasted tomato soup with golden, melted grilled cheese croutons. Ripe tomatoes, onion, and garlic are roasted until caramelized, then simmered with vegetable broth and blended smooth. Optional cream adds richness. Grilled cheese is prepared traditionally, then cut into bite-sized cubes for topping. Ready in an hour, it serves four as a satisfying starter or light meal.

Updated on Fri, 23 Jan 2026 22:39:12 GMT
Caramelized roasted tomatoes blended into a velvety soup, topped with crispy, golden grilled cheese croutons for dipping. Save to Pinterest
Caramelized roasted tomatoes blended into a velvety soup, topped with crispy, golden grilled cheese croutons for dipping. | olivefrost.com

Experience the ultimate comfort in a bowl with this Roasted Tomato Soup with Grilled Cheese Croutons. This recipe transforms simple, ripe tomatoes into a velvety, rich soup that feels like a warm hug on a chilly evening. Perfectly balanced and incredibly easy to prepare, it’s a family-friendly classic that elevates the traditional soup-and-sandwich combo into something truly special.

Caramelized roasted tomatoes blended into a velvety soup, topped with crispy, golden grilled cheese croutons for dipping. Save to Pinterest
Caramelized roasted tomatoes blended into a velvety soup, topped with crispy, golden grilled cheese croutons for dipping. | olivefrost.com

The secret to the depth of this soup lies in the oven. Roasting the tomatoes, onion, and garlic at a high temperature coaxes out their natural sugars, creating a complex sweetness and umami base. When blended with vegetable broth and a touch of cream, the result is a sophisticated texture that puts canned alternatives to shame.

Ingredients

  • For the Roasted Tomato Soup
  • 1.5 lbs (700 g) ripe tomatoes, halved
  • 1 medium onion, quartered
  • 4 garlic cloves, peeled
  • 2 tbsp olive oil
  • 1 tsp salt
  • ½ tsp black pepper
  • 1 tsp dried thyme or basil
  • 2 cups (480 ml) vegetable broth
  • 1 tbsp tomato paste
  • 1 tsp sugar (optional, to balance acidity)
  • ½ cup (120 ml) heavy cream or whole milk (optional, for creaminess)
  • For the Grilled Cheese Croutons
  • 4 slices sandwich bread
  • 4 oz (115 g) sharp cheddar cheese, sliced or shredded
  • 2 tbsp unsalted butter, softened
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Instructions

Step 1
Preheat oven to 400°F (200°C).
Step 2
Arrange tomatoes (cut side up), onion, and garlic on a baking sheet. Drizzle with olive oil, sprinkle with salt, pepper, and thyme or basil.
Step 3
Roast for 25–30 minutes, until tomatoes are soft and caramelized.
Step 4
Transfer roasted vegetables (including any juices) to a large pot. Add vegetable broth, tomato paste, and sugar (if using). Bring to a simmer over medium heat for 10 minutes, stirring occasionally.
Step 5
Using an immersion blender (or carefully in batches with a countertop blender), blend soup until smooth. Stir in cream or milk if desired. Adjust seasoning as needed. Keep warm over low heat.
Step 6
For the grilled cheese croutons: Butter one side of each bread slice. Place cheese between two slices, buttered sides out. Heat a skillet over medium heat and cook sandwiches until golden brown and cheese is melted, about 2–3 minutes per side. Let cool slightly, then cut into 1-inch (2.5 cm) cubes.
Step 7
Serve soup hot, topped with grilled cheese croutons.

Zusatztipps für die Zubereitung

When roasting, ensure the tomatoes are placed cut-side up to preserve their flavorful juices. If you are using a countertop blender, remember to blend in small batches and leave the lid slightly cracked to allow steam to escape safely.

Varianten und Anpassungen

For a different flavor profile, try adding a pinch of smoked paprika to the vegetables before roasting. You can also experiment with different cheeses like mozzarella or Gruyère for the croutons. To make the dish vegan, simply use plant-based butter, cheese, and cream alternatives.

Serviervorschläge

Serve the soup piping hot in wide bowls, piling the grilled cheese croutons high in the center just before serving so they stay crispy. For a more substantial meal, accompany the soup with a fresh, crisp side salad.

A comforting bowl of Roasted Tomato Soup with Grilled Cheese Croutons, garnished with fresh thyme on a rustic table. Save to Pinterest
A comforting bowl of Roasted Tomato Soup with Grilled Cheese Croutons, garnished with fresh thyme on a rustic table. | olivefrost.com

With its vibrant color and nostalgic flavors, this Roasted Tomato Soup with Grilled Cheese Croutons is sure to become a staple in your kitchen. Whether it's a quiet weeknight dinner or a cozy weekend lunch, this dish delivers satisfaction in every spoonful. Enjoy the perfect harmony of creamy soup and crunchy, cheesy goodness!

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Recipe FAQs

Can I use canned tomatoes instead of fresh?

Yes, use one 28-oz can of crushed tomatoes or whole peeled tomatoes. You can roast them with onion and garlic, or skip roasting and simmer directly with broth for a quicker version. The depth of flavor will be slightly less than fresh roasted tomatoes.

What's the best way to get a smooth soup?

An immersion blender works best for a smooth, creamy texture. Blend until no lumps remain. For extra silkiness, strain the blended soup through a fine-mesh sieve. If using a countertop blender, blend in small batches and be careful with hot liquid.

How do I make this vegan?

Use plant-based butter for the croutons, dairy-free cheese like cashew-based or store-bought vegan cheddar, and coconut cream or oat milk instead of heavy cream. All other ingredients are naturally vegan. The result is equally creamy and satisfying.

Can I prepare this ahead of time?

The soup keeps refrigerated for up to four days. Reheat gently over low heat, adding water if it's too thick. Make grilled cheese croutons fresh before serving for maximum crispness, or store them in an airtight container for two days and warm briefly in the oven.

What cheese works best for the croutons?

Sharp cheddar provides classic flavor and melts beautifully. Gruyère adds nutty complexity, while mozzarella gives a stretchy melt. Avoid soft cheeses like brie. Choose cheeses that melt smoothly and complement the tangy tomato soup.

How do I adjust the soup's consistency?

For thicker soup, add less vegetable broth or simmer longer to reduce. For thinner soup, add more broth or cream. Start with less cream than called for and add gradually until you reach desired richness and body.

Roasted Tomato Soup with Grilled Cheese

Velvety roasted tomato soup topped with crispy, bite-sized grilled cheese croutons. Comfort food made simple in just one hour.

Prep Time
20 minutes
Time to Cook
40 minutes
Overall Duration
60 minutes
Recipe by Natalie Wilson


Skill Level Easy

Cuisine Type American

Serves 4 Portions

Dietary Info Meat-Free

What You Need

Roasted Tomato Soup

01 1.5 lbs ripe tomatoes, halved
02 1 medium onion, quartered
03 4 garlic cloves, peeled
04 2 tablespoons olive oil
05 1 teaspoon salt
06 0.5 teaspoon black pepper
07 1 teaspoon dried thyme or basil
08 2 cups vegetable broth
09 1 tablespoon tomato paste
10 1 teaspoon sugar, optional
11 0.5 cup heavy cream or whole milk, optional

Grilled Cheese Croutons

01 4 slices sandwich bread
02 4 ounces sharp cheddar cheese, sliced or shredded
03 2 tablespoons unsalted butter, softened

How-To Steps

Step 01

Preheat Oven: Set oven to 400°F and allow 10 minutes for preheating.

Step 02

Prepare Vegetables for Roasting: Arrange halved tomatoes cut-side up, quartered onion, and peeled garlic cloves on a baking sheet. Drizzle with olive oil and season with salt, pepper, and dried thyme or basil.

Step 03

Roast Vegetables: Place baking sheet in preheated oven and roast for 25 to 30 minutes until tomatoes are soft and caramelized with slightly charred edges.

Step 04

Build Soup Base: Transfer roasted vegetables and all pan juices to a large pot. Add vegetable broth, tomato paste, and sugar if desired. Bring mixture to a simmer over medium heat and cook for 10 minutes, stirring occasionally.

Step 05

Blend Soup: Using an immersion blender, puree soup until completely smooth. Alternatively, carefully transfer soup in batches to a countertop blender and process until smooth. Stir in cream or milk if desired and adjust seasoning to taste. Keep warm over low heat.

Step 06

Prepare Grilled Cheese: Butter one side of each bread slice. Place shredded cheese between two slices with buttered sides facing outward.

Step 07

Cook Sandwiches: Heat a skillet over medium heat. Cook assembled sandwiches until golden brown and cheese melts, approximately 2 to 3 minutes per side. Remove from heat and cool slightly.

Step 08

Cut Croutons: Cut cooled grilled cheese sandwiches into 1-inch cubes.

Step 09

Serve: Ladle hot soup into bowls and top with grilled cheese croutons. Serve immediately.

What You'll Need

  • Baking sheet
  • Large pot
  • Immersion blender or countertop blender
  • Skillet
  • Knife and cutting board

Allergy Details

Be sure to check ingredients for allergens and ask your doctor if you’re not sure.
  • Contains wheat from sandwich bread
  • Contains milk from cheese, butter, and cream
  • Use gluten-free bread for wheat sensitivity
  • Use dairy-free cheese and butter alternatives for milk sensitivity

Nutrition Details (per portion)

Intended only for informational use, not medical advice.
  • Calories: 410
  • Fats: 22 g
  • Carbohydrates: 38 g
  • Proteins: 13 g