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+ servings

Slow Cooker Roasted Tomato Bisque

A creamy, smooth, and velvety tomato bisque full of classic veggies and fire-roasted tomatoes!
Prep Time10 mins
Cook Time6 hrs
Total Time6 hrs 10 mins
Course: Soup
Servings: 4 -6


  • 3 T all-purpose flour
  • 3 T water
  • 2 15- oz cans fire-roasted diced tomatoes with juices
  • 1 medium yellow onion finely diced
  • 1 large carrot finely diced
  • 2 large celery ribs finely diced
  • 2 T tomato paste
  • 1/4 t dried thyme or 1 t fresh thyme
  • 4 cups vegetable broth
  • 1/4 cup heavy cream
  • salt & pepper to taste
  • Grated parmesan cheese


  • In a small bowl, add the flour and water. Stir until smooth and thick. Set aside.
  • In a slow cooker, add the tomatoes, onion, carrot, celery, tomato paste, thyme, vegetable broth, heavy cream, and desired amount of salt and pepper. Add the flour & water mixture. Stir to combine the ingredients.
  • Cover and cook on low for 6-8 hours or high for 3-4 hours.
  • Once the soup is ready, use an immersion blender to blend until smooth. Add additional salt and pepper if needed.
  • Serve topped with grated parmesan cheese.
  • Enjoy!


Recipe Source: The Domestic Geek