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Low-Carb Shirataki Pasta and Vegetable Casserole

April 9, 2018 (Last Updated: July 31, 2026)
Turnips, Spinach and Cauliflower Casserole with Shirataki Ziti Noodles

This creamy shirataki pasta and vegetable casserole combines ziti-style shirataki noodles with spinach, cauliflower, and mashed turnip for a comforting yet light vegetable bake. Finished with nutritional yeast, cream, and Parmigiano Reggiano, it’s naturally gluten-free, low-carb, and rich in vegetables — perfect for a family dinner, meal prep, or as a side dish with your favorite protein.

A comforting casserole inspired by what I had in the fridge

I first made this recipe after returning from a road trip through West Texas. Waiting in the fridge were a bag of riced cauliflower, one large turnip, and some frozen spinach, so I combined them with a package of shirataki ziti and turned everything into a creamy vegetable casserole.

It was one of those practical, clean-out-the-fridge meals that turned out much better than expected. The turnip becomes soft and creamy when mashed, while the cauliflower and spinach add substance without making the casserole heavy. Shirataki pasta keeps it light and low in carbohydrates while giving it the comforting feel of a pasta bake.

sirataki pasta casserole after baking and serving

Using shirataki pasta in a casserole

Shirataki noodles are made from konjac and are naturally gluten-free and very low in carbohydrates. They are most commonly sold as spaghetti, fettuccine, or angel hair, but thicker pasta shapes such as ziti and penne work especially well in casseroles.

The ziti-style noodles I originally used were from Miracle Noodle. If you can’t find this specific shape, use another thick shirataki pasta or your preferred variety. Drain the noodles and rinse them thoroughly under cold water before adding them to the casserole. There is no need to dry-fry them for this recipe.

How the creamy vegetable base works

Instead of relying on a large amount of cheese or a flour-thickened sauce, this casserole gets much of its creamy texture from cooked and loosely mashed turnip. Nutritional yeast, heavy cream, and ghee or butter make it richer, while the herbs, cumin, and nutmeg add warmth and depth.

Parmigiano Reggiano creates a savory golden topping, but the casserole can also be made dairy-free by using coconut cream, omitting the ghee or butter, and replacing the Parmesan with additional nutritional yeast.

shirataki noodle casserole served on a plate and a fork

Serving suggestions

This casserole can be served as a light vegetarian main dish or as a side with chicken, turkey, beef, lamb, or fish. I especially like it with fermented beets or other fermented vegetables, a drizzle of extra virgin olive oil, or a simple green salad.

It is good served hot, but the leftovers are also enjoyable cold or gently reheated, making it a practical option for meal prep.

shirataki noodle casserole served on a plate with fermented beets

More casserole recipes

If you like this turnips, spinach and cauliflower casserole with noodles, you may also like my other casserole recipes such as:

*This post contains affiliate links, which means I get a small commission if you choose to purchase something via one of my links, at no extra cost to you.

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Turnips, Spinach and Cauliflower Casserole with Shirataki Ziti Noodles

Low-Carb Shirataki Pasta and Vegetable Casserole

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  • Author: Claudia Curici, Health Coach
  • Prep Time: 10 minutes
  • Cook Time: 50 minutes
  • Total Time: 1 hour
  • Yield: 4 servings
  • Category: Dinner
  • Method: Baking
  • Cuisine: American
  • Diet: Gluten-Free, Low-Carb, Vegetarian

Description

This creamy shirataki pasta and vegetable casserole combines ziti-style shirataki noodles with spinach, cauliflower, and mashed turnip for a comforting yet light vegetable bake. Finished with nutritional yeast, cream, and Parmigiano Reggiano, it’s naturally gluten-free, low-carb, and rich in vegetables — perfect for a family dinner, meal prep, or as a side dish with your favorite protein.


Ingredients

  • 1 large pink turnip, about the size of a very large apple, peeled and cubed
  • Salt, for the cooking water
  • Avocado oil, for sautéing
  • 1 medium yellow onion, chopped
  • 2 cups frozen spinach
  • 12 ounces (340 grams) riced cauliflower
  • 1/4 teaspoon dried thyme
  • 1/2 teaspoon dried oregano
  • 1/4 teaspoon ground cumin
  • pinch of nutmeg
  • 1 teaspoon dried parsley
  • 1 teaspoon salt
  • Freshly ground black pepper, to taste
  • 3 tablespoons nutritional yeast
  • 1/4 cup (60 milliliters) organic, grass-fed heavy cream
  • 2 tablespoons ghee or butter
  • 1 package ziti-style shirataki noodles, drained and thoroughly rinsed
  • Grated Parmigiano Reggiano, for topping


Instructions

  1. Preheat the oven to 375°F (190°C).
  2. Add the peeled and cubed turnip to a saucepan of salted water and boil until soft. Alternatively, steam the turnip. Drain well, loosely mash it, and set it aside.
  3. Heat enough avocado oil to generously coat the bottom of a large sauté pan over medium heat. Add the chopped onion and sauté until translucent.
  4. Add the frozen spinach and riced cauliflower. Stir well, cover the pan, and cook over low to medium heat for about 10 minutes, or until the vegetables are tender and well combined.
  5. Add the thyme, oregano, cumin, nutmeg, dried parsley, salt, and freshly ground black pepper. Stir well and adjust the seasoning to taste.
  6. Add the nutritional yeast, heavy cream, and ghee or butter to the mashed turnip. Mix until combined.
  7. Add the turnip mixture and thoroughly rinsed shirataki ziti to the pan with the spinach and cauliflower. Stir until everything is evenly combined.
  8. Transfer the mixture to a baking dish and top with grated Parmigiano Reggiano.
  9. Bake for 30 minutes. Serve warm with a drizzle of extra virgin olive oil, if desired.

Notes

If ziti-shaped shirataki pasta is unavailable, use shirataki penne or another thicker shirataki noodle variety.

Serve with fermented beets, pickled vegetables, a green salad, or your preferred protein.

Leftovers can be refrigerated and served cold or gently reheated.

9 Comments

  • Reply
    Lori
    June 7, 2021 at 7:38 pm

    Decided not to do the oat fiber. Used Miracle Noodles. Liked the recipe, but next time I will do freshly grated nutmeg and more cumin. It is a good dish.

    My favorite recipe so far is The Ultimate Plant Paradox Meatloaf. you crushed that. My husband loves it too and he is not on the program.

    • Reply
      Claudia
      June 8, 2021 at 5:32 am

      Maybe we will find the answer to the oat fiber question. Fresh grated nutmeg is always a good idea 🙂 xx

  • Reply
    Lori
    June 6, 2021 at 11:21 am

    Claudia! Wow! Thank you for responding. You are amazing! Thank you for providing the amounts for the herbs. I’m making it today. Using Liviva organic shirataki pasta with oat fiber (oat husks) hope that is lectin free🤞

    • Reply
      Claudia
      June 6, 2021 at 11:29 am

      My pleasure! I’m not sure about the oat fiber. It might be ok since it’s just the fiber.

  • Reply
    Lori
    June 1, 2021 at 8:24 am

    Your cookbook and recipes are wonderful! Thank you for everything you do!
    Would you please give a recommendation on the amounts for the spices. It would be really helpful. Thanks!

    • Reply
      Claudia
      June 2, 2021 at 1:46 am

      Hi Lori, thank you so much, I’m happy you love the book. Wow, this is an old recipe, I just updated the quantity for spices. I recommend you taste while you add and adjust everything to your taste. <3

  • Reply
    K
    September 25, 2019 at 8:44 am

    What are the measurements for the spice ingredients?

  • Reply
    Liz
    April 19, 2018 at 9:17 pm

    I made this a few nights ago and it was delicious! I didn’t have the ziti miracle noodles so I just used spaghetti which worked great. Thank you for a new yummy and creative meal. 🙂

    • Reply
      Claudia
      April 20, 2018 at 8:46 am

      Yay, thank for letting me know <3

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