Print

Cozy Slow Cooker Roasted Tomato Basil Soup with Easy Grilled Cheese Croutons

slow cooker roasted tomato basil soup - featured image

A warm, comforting slow cooker roasted tomato basil soup with a rich, caramelized flavor, topped with crispy grilled cheese croutons for a nostalgic twist.

Ingredients

Scale
  • 3 pounds ripe Roma tomatoes, halved
  • 6 cloves garlic, smashed
  • 1 large yellow onion, roughly chopped
  • 1 cup packed fresh basil leaves, roughly chopped
  • 3 tablespoons extra virgin olive oil
  • 4 cups low-sodium vegetable broth
  • 1 cup small curd cottage cheese
  • Salt and freshly cracked black pepper, to taste
  • 2 tablespoons softened butter
  • 4 slices good-quality sourdough or country white bread
  • 4 slices sharp cheddar or favorite melting cheese

Instructions

  1. Preheat oven to 400°F (200°C). Arrange halved Roma tomatoes, smashed garlic cloves, and chopped onion on a rimmed baking sheet. Drizzle with olive oil and sprinkle with salt and pepper. Toss gently to coat evenly.
  2. Roast for 35-40 minutes until tomatoes are caramelized and slightly shriveled around edges.
  3. Transfer roasted vegetables to slow cooker. Pour in vegetable broth and add chopped fresh basil. Stir gently.
  4. Cover and cook on low for 4-5 hours or on high for 2-3 hours.
  5. About 30 minutes before serving, prepare grilled cheese croutons: butter one side of each bread slice, place cheese slices between two bread pieces with butter sides out.
  6. Heat skillet over medium heat and cook sandwiches until golden brown and cheese is melted, about 3-4 minutes per side. Let cool slightly and cut into bite-sized cubes.
  7. After soup has cooked, puree directly in slow cooker with immersion blender until smooth or carefully blend in batches.
  8. Stir in cottage cheese until fully incorporated. Taste and adjust salt and pepper.
  9. Ladle soup into bowls and top with grilled cheese croutons.

Notes

If soup tastes too acidic, stir in a pinch of sugar or a splash of cream to balance flavors. Roasting tomatoes is essential for deep flavor. Use moderate heat and preheat pan for grilled cheese croutons to avoid sticking. For dairy-free version, substitute cottage cheese with coconut yogurt and use vegan cheese or omit croutons.

Nutrition

Keywords: slow cooker tomato soup, roasted tomato soup, basil soup, grilled cheese croutons, comfort food, easy soup recipe, cozy soup