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Keto Zuppa Toscana Soup - Cozy, Creamy, and Low-Carb

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings

Ingredients
  

  • Italian sausage: 1 pound, bulk or casings removed (mild or hot)
  • Thick-cut bacon: 4 slices, chopped (optional but recommended)
  • Olive oil or avocado oil: 1–2 tablespoons
  • Onion: 1 small, diced
  • Garlic: 4 cloves, minced
  • Chicken broth: 6 cups, low-sodium
  • Cauliflower: 1 medium head, cut into small florets (about 4 cups)
  • Kale: 4 cups, stems removed and leaves shredded (or baby spinach)
  • Heavy cream: 3/4 to 1 cup
  • Parmesan cheese: 1/3 cup, finely grated (plus extra for serving)
  • Crushed red pepper flakes: 1/2 teaspoon (optional, adjust to taste)
  • Italian seasoning: 1 teaspoon
  • Salt and black pepper: To taste
  • Lemon: 1, for a squeeze at the end (optional but brightens everything)

Method
 

  1. Brown the bacon: In a large soup pot over medium heat, cook the chopped bacon until crispy. Remove with a slotted spoon and set aside. Leave 1–2 tablespoons of the bacon fat in the pot.
  2. Cook the sausage: Add the sausage to the pot. Break it up with a spoon and cook until browned and cooked through, about 6–8 minutes. If there’s excess fat, spoon off a bit, leaving about a tablespoon for flavor.
  3. Sauté the aromatics: Add a drizzle of olive oil if the pot looks dry. Stir in the diced onion and cook 3–4 minutes until softened. Add the minced garlic, red pepper flakes, and Italian seasoning. Cook 30–60 seconds until fragrant.
  4. Build the broth: Pour in the chicken broth, scraping up any browned bits from the bottom. Bring to a gentle boil.
  5. Add the cauliflower: Stir in the florets. Reduce heat to a simmer and cook 10–12 minutes, until the cauliflower is fork-tender but not mushy.
  6. Make it creamy: Lower the heat and stir in the heavy cream and Parmesan. Simmer 2–3 minutes, stirring, until slightly thickened. Don’t let it boil hard—gentle heat keeps the cream smooth.
  7. Add the greens: Stir in the kale and the crispy bacon. Simmer 2–3 minutes until the greens are tender but still bright. If using spinach, it will wilt in about 1 minute.
  8. Season and finish: Taste and season with salt and black pepper. Add a quick squeeze of lemon to brighten the flavors. If you like more heat, finish with extra red pepper flakes.
  9. Serve: Ladle into bowls and top with extra Parmesan and a drizzle of good olive oil if you’d like.