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Slow Cooker Roasted Tomato Basil Bisque Recipe with Easy Grilled Cheese Croutons

slow cooker roasted tomato basil bisque - featured image

A cozy and flavorful slow cooker roasted tomato basil bisque with creamy texture and crispy grilled cheese croutons, perfect for chilly days and comforting meals.

Ingredients

Scale
  • 3 pounds fresh tomatoes (Roma or vine-ripened)
  • 2 tablespoons olive oil
  • 1 medium yellow onion, diced
  • 4 garlic cloves, minced
  • 1 medium carrot, peeled and diced
  • 3 cups vegetable broth (low-sodium preferred)
  • 1 cup fresh basil leaves, loosely packed
  • ½ cup heavy cream (or coconut cream for dairy-free)
  • Salt and freshly ground black pepper to taste
  • For the grilled cheese croutons:
  • 4 slices sourdough bread
  • 4 slices sharp cheddar cheese
  • 2 tablespoons unsalted butter

Instructions

  1. Preheat your oven to 400°F (200°C). Toss halved tomatoes, diced onion, carrot, and garlic with olive oil, salt, and pepper on a baking sheet. Roast for 30-40 minutes until the tomatoes are caramelized and slightly charred around the edges.
  2. Transfer roasted veggies to the slow cooker. Add the vegetable broth and stir to combine. Cook on low for 6-7 hours or high for 3-4 hours.
  3. About 30 minutes before serving, add fresh basil leaves to the slow cooker. Stir gently and continue cooking.
  4. Once cooked, blend the soup until smooth using an immersion blender or countertop blender.
  5. Stir in heavy cream (or coconut cream) and adjust seasoning with salt and pepper. Keep warm.
  6. For the grilled cheese croutons: Butter one side of each bread slice. Place cheese between two slices (buttered sides out). Grill in a hot skillet for 2-3 minutes per side until golden and cheese is melted. Let cool slightly, then cut into bite-sized cubes.
  7. Serve the bisque hot, topped generously with grilled cheese croutons.

Notes

Keep the slow cooker lid sealed during cooking to retain heat and flavor. If bisque is too thick after blending, thin with broth or water; if too thin, simmer uncovered on high for 15 minutes. For vegan version, substitute cream with coconut milk and use vegan butter and cheese. Grilled cheese croutons are best fresh but can be stored separately and re-crisped before serving.

Nutrition

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