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Creamy Low-Carb Zuppa Toscana Recipe Easy Perfect Cauliflower Soup

creamy low-carb zuppa toscana - featured image

A creamy, comforting low-carb twist on classic Tuscan soup using cauliflower instead of potatoes, perfect for cozy dinners and low-carb diets.

Ingredients

Scale
  • 1 pound Italian sausage, casing removed (mild or spicy)
  • 1 medium head cauliflower (about 4 cups or 600g), chopped into florets
  • 1 medium onion, finely chopped
  • 3 cloves garlic, minced
  • 6 cups chicken broth (1.4 liters), preferably low sodium
  • 1 cup heavy cream (240 ml) or half-and-half for a lighter option
  • 2 cups kale (about 60g), chopped and stems removed
  • 1/4 teaspoon crushed red pepper flakes (optional)
  • 1 tablespoon olive oil
  • Salt and black pepper to taste

Instructions

  1. Heat 1 tablespoon olive oil in a large pot over medium heat. Add Italian sausage, breaking it apart with a spoon. Cook for 5–7 minutes until browned and cooked through. Remove sausage with a slotted spoon and set aside, leaving drippings in the pot.
  2. Add chopped onion to the pot and sauté for about 4 minutes until translucent. Add minced garlic and cook for another 30 seconds until aromatic.
  3. Add chopped cauliflower florets and 6 cups chicken broth. Bring to a boil, then reduce heat to simmer. Cook uncovered for 15 minutes until cauliflower is very tender.
  4. Using an immersion blender, puree the soup until creamy but still slightly chunky. If using a regular blender, blend in batches and return to pot.
  5. Stir in 1 cup heavy cream and chopped kale. Simmer for another 5 minutes until kale wilts and soup is heated through.
  6. Return cooked sausage to the pot. Season with salt, black pepper, and crushed red pepper flakes if using. Stir well and cook for 2 more minutes.
  7. Taste and adjust seasoning as needed. If soup is too thick, add a splash of broth or water to reach desired consistency.
  8. Serve warm, optionally garnished with grated Parmesan or fresh parsley.

Notes

Do not rush cooking the cauliflower; it must be tender enough to blend smoothly. Avoid over-browning the sausage to prevent toughness. Add kale near the end to avoid bitterness and mushiness. When blending hot soup in a regular blender, remove the center cap and cover with a towel to prevent splashes.

Nutrition

Keywords: low-carb, zuppa toscana, cauliflower soup, creamy soup, Italian sausage, keto, gluten-free, healthy dinner